The ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel before 2.6.37 does not initialize a certain response buffer, which allows local users to obtain potentially sensitive information from kernel memory via vectors that cause this buffer to be only partially filled, a different vulnerability than CVE-2010-4649.

The remote VMware ESX / ESXi host is missing a security-related patch.
It is, therefore, affected by multiple vulnerabilities, including remote code execution vulnerabilities, in several third-party libraries :

  - COS kernel
  - cURL
  - python
  - rpm

This Linux kernel update fixes various security issues and bugs in the SUSE Linux Enterprise 10 SP4 kernel.

The following security issues have been fixed :

CVE-2011-2494: kernel/taskstats.c in the Linux kernel allowed local users to obtain sensitive I/O statistics by sending taskstats commands to a netlink socket, as demonstrated by discovering the length of another users password (a side channel attack).

CVE-2012-2744: net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel, when the nf_conntrack_ipv6 module is enabled, allowed remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.

CVE-2012-3510: Use-after-free vulnerability in the xacct_add_tsk function in kernel/tsacct.c in the Linux kernel allowed local users to obtain potentially sensitive information from kernel memory or cause a denial of service (system crash) via a taskstats TASKSTATS_CMD_ATTR_PID command.

CVE-2011-4110: The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allowed local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and updating a negative key into a fully instantiated key.

CVE-2011-1044: The ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel did not initialize a certain response buffer, which allowed local users to obtain potentially sensitive information from kernel memory via vectors that cause this buffer to be only partially filled, a different vulnerability than CVE-2010-4649.

CVE-2012-3400: Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel allowed remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted UDF filesystem.

CVE-2012-2136: The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel did not properly validate a certain length value, which allowed local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device.

CVE-2012-2663: A small denial of service leak in dropping syn+fin messages was fixed.

The following non-security issues have been fixed :

Packaging :

  - kbuild: Fix gcc -x syntax (bnc#773831).

NFS :

  - knfsd: An assortment of little fixes to the sunrpc cache     code (bnc#767766).

  - knfsd: Unexport cache_fresh and fix a small race     (bnc#767766).

  - knfsd: nfsd: do not drop silently on upcall deferral     (bnc#767766).

  - knfsd: svcrpc: remove another silent drop from deferral     code (bnc#767766).

  - sunrpc/cache: simplify cache_fresh_locked and     cache_fresh_unlocked (bnc#767766).

  - sunrpc/cache: recheck cache validity after     cache_defer_req (bnc#767766).

  - sunrpc/cache: use list_del_init for the list_head     entries in cache_deferred_req (bnc#767766).

  - sunrpc/cache: avoid variable over-loading in     cache_defer_req (bnc#767766).

  - sunrpc/cache: allow thread to block while waiting for     cache update (bnc#767766).

  - sunrpc/cache: Fix race in sunrpc/cache introduced by     patch to allow thread to block while waiting for cache     update (bnc#767766).

  - sunrpc/cache: Another fix for race problem with sunrpc     cache deferal (bnc#767766).

  - knfsd: nfsd: make all exp_finding functions return

-errnos on err (bnc#767766).

  - Fix kabi breakage in previous nfsd patch series     (bnc#767766).

  - nfsd: Work around incorrect return type for     wait_for_completion_interruptible_timeout (bnc#767766).

  - nfs: Fix a potential file corruption issue when writing     (bnc#773272).

  - nfs: Allow sync writes to be multiple pages     (bnc#763526).

  - nfs: fix reference counting for NFSv4 callback thread     (bnc#767504).

  - nfs: flush signals before taking down callback thread     (bnc#767504).

  - nfsv4: Ensure nfs_callback_down() calls svc_destroy()     (bnc#767504).

SCSI :

  - SCSI/ch: Check NULL for kmalloc() return (bnc#783058).
    drivers/scsi/aic94xx/aic94xx_init.c: correct the size     argument to kmalloc (bnc#783058).

    block: fail SCSI passthrough ioctls on partition devices     (bnc#738400).

    dm: do not forward ioctls from logical volumes to the     underlying device (bnc#738400).

    vmware: Fix VMware hypervisor detection (bnc#777575,     bnc#770507).

S/390 :

  - lgr: Make lgr_page static (bnc#772409,LTC#83520).

  - zfcp: Fix oops in _blk_add_trace()     (bnc#772409,LTC#83510). kernel: Add z/VM LGR detection     (bnc#767277,LTC#RAS1203).

    be2net: Fix EEH error reset before a flash dump     completes (bnc#755546).

  - mptfusion: fix msgContext in mptctl_hp_hostinfo     (bnc#767939).

  - PCI: Fix bus resource assignment on 32 bits with 64b     resources. (bnc#762581)

  - PCI: fix up setup-bus.c #ifdef. (bnc#762581) x86:
    powernow-k8: Fix indexing issue (bnc#758985).

    net: Fix race condition about network device name     allocation (bnc#747576).

XEN :

  - smpboot: adjust ordering of operations.

  - xen/x86-64: provide a memset() that can deal with 4Gb or     above at a time (bnc#738528).

  - xen: fix VM_FOREIGN users after c/s 878:eba6fe6d8d53     (bnc#760974).

  - xen/gntdev: fix multi-page slot allocation (bnc#760974).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2013-0039 for details.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-2015 advisory.

    - sctp: fix to calc the INIT/INIT-ACK chunk length correctly is set {CVE-2011-1573}
    - dccp: fix oops on Reset after close {CVE-2011-1093}
    - bridge: netfilter: fix information leak {CVE-2011-1080}
    - Bluetooth: bnep: fix buffer overflow {CVE-2011-1079}
    - net: don't allow CAP_NET_ADMIN to load non-netdev kernel modules {CVE-2011-1019}
    - drm/radeon/kms: check AA resolve registers on r300 {CVE-2011-1016}
    - drm/radeon: fix regression with AA resolve checking {CVE-2011-1016}
    - drm: fix unsigned vs signed comparison issue in modeset ctl ioctl {CVE-2011-1013}
    - proc: protect mm start_code/end_code in /proc/pid/stat {CVE-2011-0726}
    - ALSA: caiaq - Fix possible string-buffer overflow {CVE-2011-0712}
    - xfs: zero proper structure size for geometry calls {CVE-2011-0711}
    - xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1 {CVE-2011-0711}
    - ima: fix add LSM rule bug {CVE-2011-0006}
    - IB/uverbs: Handle large number of entries in poll CQ {CVE-2010-4649, CVE-2011-1044}
    - CAN: Use inode instead of kernel address for /proc file {CVE-2010-4565}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-0927 advisory.

    - Revert: [xen] hvm: svm support cleanups (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - Revert: [xen] hvm: secure svm_cr_access (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [net] bluetooth: l2cap and rfcomm: fix info leak to userspace (Thomas Graf) [703020 703021]     {CVE-2011-2492}
    - [net] inet_diag: fix inet_diag_bc_audit data validation (Thomas Graf) [714538 714539] {CVE-2011-2213}
    - [misc] signal: fix kill signal spoofing issue (Oleg Nesterov) [690030 690031] {CVE-2011-1182}
    - [fs] proc: fix signedness issue in next_pidmap (Oleg Nesterov) [697826 697827] {CVE-2011-1593}
    - [char] agp: fix OOM and buffer overflow (Jerome Marchand) [699009 699010] {CVE-2011-1746}
    - [char] agp: fix arbitrary kernel memory writes (Jerome Marchand) [699005 699006] {CVE-2011-2022     CVE-2011-1745}
    - [infiniband] core: Handle large number of entries in poll CQ (Jay Fenlason) [668370 668371]     {CVE-2011-1044 CVE-2010-4649}
    - [infiniband] core: fix panic in ib_cm:cm_work_handler (Jay Fenlason) [679995 679996] {CVE-2011-0695}
    - [fs] validate size of EFI GUID partition entries (Anton Arapov) [703027 703028] {CVE-2011-1776}
    - [xen] hvm: secure vmx cpuid (Andrew Jones) [706324 706323] {CVE-2011-1936}
    - [xen] hvm: secure svm_cr_access (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [xen] hvm: svm support cleanups (Andrew Jones) [703715 702657] {CVE-2011-1780}
    - [net] sctp: fix calc of INIT/INIT-ACK chunk length to set (Thomas Graf) [695384 695385] {CVE-2011-1573}
    - [fs] xfs: prevent leaking uninit stack memory in FSGEOMETRY_V1 p2 (Phillip Lougher) [677265 677266]     {CVE-2011-0711}
    - [fs] xfs: prevent leaking uninit stack memory in FSGEOMETRY_V1 (Phillip Lougher) [677265 677266]     {CVE-2011-0711}
    - [net] core: Fix memory leak/corruption on VLAN GRO_DROP (Herbert Xu) [695174 691565] {CVE-2011-1576}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2011-0498 advisory.

    - [drm] radeon/kms: check AA resolve registers on r300 + regression fix (Dave Airlie) [680001 680002]     {CVE-2011-1016}
    - [infiniband] uverbs: Handle large number of entries in poll CQ (Eugene Teo) [688429 696137]     {CVE-2011-1044 CVE-2010-4649}
    - [net] sctp: fix the INIT/INIT-ACK chunk length calculation (Thomas Graf) [695386 690743] {CVE-2011-1573}
    - [net] CAN: Use inode instead of kernel address for /proc file (Danny Feng) [664560 664561]     {CVE-2010-4565}
    - [fs] inotify: fix double free/corruption of stuct user (Eric Paris) [656831 656832] {CVE-2010-4250}
    - [fs] inotify: stop kernel memory leak on file creation failure (Eric Paris) [656831 656832]     {CVE-2010-4250}
    - [net] fix ebtables stack infoleak (Eugene Teo) [681322 681323] {CVE-2011-1080}
    - [drm] fix unsigned vs signed comparison issue in modeset ctl ioctl (Don Howard) [679927 679928]     {CVE-2011-1013}
    - [net] bnep: fix buffer overflow (Don Howard) [681315 681316] {CVE-2011-1079}
    - [kernel] CAP_SYS_MODULE bypass via CAP_NET_ADMIN (Phillip Lougher) [681772 681773] {CVE-2011-1019}
    - [kernel] failure to revert address limit override in OOPS error path (Dave Anderson) [659572 659573]     {CVE-2010-4258}
    - [fs] xfs: zero proper structure size for geometry calls (Phillip Lougher) [677267 677268]     {CVE-2011-0711}
    - [fs] xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1 (Phillip Lougher) [677267 677268]     {CVE-2011-0711}
    - [kernel] proc: protect mm start_code/end_code in /proc/pid/stat (Eugene Teo) [684572 684573]     {CVE-2011-0726}
    - [net] dccp oops (Eugene Teo) [682957 682958] {CVE-2011-1093}
    - [security] ima: fix add LSM rule bug (Eric Paris) [667914 667915] {CVE-2011-0006}
    - [sound] caiaq: Fix possible string buffer overflow (Jaroslav Kysela) [678475 678476] {CVE-2011-0712}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Dan Rosenberg discovered that the RDS network protocol did not correctly check certain parameters. A local attacker could exploit this gain root privileges. (CVE-2010-3904)

Nelson Elhage discovered several problems with the Acorn Econet protocol driver. A local user could cause a denial of service via a NULL pointer dereference, escalate privileges by overflowing the kernel stack, and assign Econet addresses to arbitrary interfaces.
(CVE-2010-3848, CVE-2010-3849, CVE-2010-3850)

Ben Hutchings discovered that the ethtool interface did not correctly check certain sizes. A local attacker could perform malicious ioctl calls that could crash the system, leading to a denial of service.
(CVE-2010-2478, CVE-2010-3084)

Eric Dumazet discovered that many network functions could leak kernel stack contents. A local attacker could exploit this to read portions of kernel memory, leading to a loss of privacy. (CVE-2010-2942, CVE-2010-3477)

Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. A remote attacker could exploit this to read or write disk blocks that had changed file assignment or had become unlinked, leading to a loss of privacy.
(CVE-2010-2943)

Tavis Ormandy discovered that the IRDA subsystem did not correctly shut down. A local attacker could exploit this to cause the system to crash or possibly gain root privileges. (CVE-2010-2954)

Brad Spengler discovered that the wireless extensions did not correctly validate certain request sizes. A local attacker could exploit this to read portions of kernel memory, leading to a loss of privacy. (CVE-2010-2955)

Tavis Ormandy discovered that the session keyring did not correctly check for its parent. On systems without a default session keyring, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-2960)

Kees Cook discovered that the Intel i915 graphics driver did not correctly validate memory regions. A local attacker with access to the video card could read and write arbitrary kernel memory to gain root privileges. (CVE-2010-2962)

Kees Cook discovered that the V4L1 32bit compat interface did not correctly validate certain parameters. A local attacker on a 64bit system with access to a video device could exploit this to gain root privileges. (CVE-2010-2963)

Tavis Ormandy discovered that the AIO subsystem did not correctly validate certain parameters. A local attacker could exploit this to crash the system or possibly gain root privileges. (CVE-2010-3067)

Dan Rosenberg discovered that certain XFS ioctls leaked kernel stack contents. A local attacker could exploit this to read portions of kernel memory, leading to a loss of privacy. (CVE-2010-3078)

Robert Swiecki discovered that ftrace did not correctly handle mutexes. A local attacker could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-3079)

Tavis Ormandy discovered that the OSS sequencer device did not correctly shut down. A local attacker could exploit this to crash the system or possibly gain root privileges. (CVE-2010-3080)

Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3296, CVE-2010-3297, CVE-2010-3298)

Dan Rosenberg discovered that the ROSE driver did not correctly check parameters. A local attacker with access to a ROSE network device could exploit this to crash the system or possibly gain root privileges. (CVE-2010-3310)

Thomas Dreibholz discovered that SCTP did not correctly handle appending packet chunks. A remote attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2010-3432)

Dan Rosenberg discovered that the CD driver did not correctly check parameters. A local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2010-3437)

Dan Rosenberg discovered that the Sound subsystem did not correctly validate parameters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3442)

Dan Jacobson discovered that ThinkPad video output was not correctly access controlled. A local attacker could exploit this to hang the system, leading to a denial of service. (CVE-2010-3448)

It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3698)

Dan Rosenberg discovered that SCTP did not correctly handle HMAC calculations. A remote attacker could send specially crafted traffic that would crash the system, leading to a denial of service.
(CVE-2010-3705)

Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3858)

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. (CVE-2010-3859)

Kees Cook discovered that the ethtool interface did not correctly clear kernel memory. A local attacker could read kernel heap memory, leading to a loss of privacy. (CVE-2010-3861)

Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user.
(CVE-2010-3865)

Dan Rosenberg discovered that the Linux kernel X.25 implementation incorrectly parsed facilities. A remote attacker could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-3873)

Dan Rosenberg discovered that the CAN protocol on 64bit systems did not correctly calculate the size of certain buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2010-3874)

Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3875)

Vasiliy Kulikov discovered that the Linux kernel sockets implementation did not properly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3876)

Vasiliy Kulikov discovered that the TIPC interface did not correctly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3877)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

Vasiliy Kulikov discovered that kvm did not correctly clear memory. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy. (CVE-2010-3881)

Kees Cook and Vasiliy Kulikov discovered that the shm interface did not clear kernel memory correctly. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4072)

Dan Rosenberg discovered that IPC structures were not correctly initialized on 64bit systems. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4073)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075)

Dan Rosenberg discovered that the ivtv V4L driver did not correctly initialize certian structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4079)

Dan Rosenberg discovered that the RME Hammerfall DSP audio interface driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4080, CVE-2010-4081)

Dan Rosenberg discovered that the VIA video driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4082)

Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

James Bottomley discovered that the ICP vortex storage array controller driver did not validate certain sizes. A local attacker on a 64bit system could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-4157)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that the Linux kernel L2TP implementation contained multiple integer signedness errors. A local attacker could exploit this to to crash the kernel, or possibly gain root privileges.
(CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dan Rosenberg discovered multiple flaws in the X.25 facilities parsing. If a system was using X.25, a remote attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2010-4164)

Steve Chen discovered that setsockopt did not correctly check MSS values. A local attacker could make a specially crafted socket call to crash the system, leading to a denial of service. (CVE-2010-4165)

Dave Jones discovered that the mprotect system call did not correctly handle merged VMAs. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4169)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

Vegard Nossum discovered that memory garbage collection was not handled correctly for active sockets. A local attacker could exploit this to allocate all available kernel memory, leading to a denial of service. (CVE-2010-4249)

Nelson Elhage discovered that the kernel did not correctly handle process cleanup after triggering a recoverable kernel bug. If a local attacker were able to trigger certain kinds of kernel bugs, they could create a specially crafted process to gain root privileges.
(CVE-2010-4258)

Krishna Gudipati discovered that the bfa adapter driver did not correctly initialize certain structures. A local attacker could read files in /sys to crash the system, leading to a denial of service.
(CVE-2010-4343)

Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
(CVE-2010-4346)

It was discovered that the ICMP stack did not correctly handle certain unreachable messages. If a remote attacker were able to acquire a socket lock, they could send specially crafted traffic that would crash the system, leading to a denial of service. (CVE-2010-4526)

Dan Rosenberg discovered that the OSS subsystem did not handle name termination correctly. A local attacker could exploit this crash the system or gain root privileges. (CVE-2010-4527)

An error was reported in the kernel's ORiNOCO wireless driver's handling of TKIP countermeasures. This reduces the amount of time an attacker needs breach a wireless network using WPA+TKIP for security.
(CVE-2010-4648)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

An error was discovered in the kernel's handling of CUSE (Character device in Userspace). A local attacker might exploit this flaw to escalate privilege, if access to /dev/cuse has been modified to allow non-root users. (CVE-2010-4650)

Kees Cook discovered that some ethtool functions did not correctly clear heap memory. A local attacker with CAP_NET_ADMIN privileges could exploit this to read portions of kernel heap memory, leading to a loss of privacy. (CVE-2010-4655)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Joel Becker discovered that OCFS2 did not correctly validate on-disk symlink structures. If an attacker were able to trick a user or automated system into mounting a specially crafted filesystem, it could crash the system or expose kernel memory, leading to a loss of privacy. (CVE-2010-NNN2)

A flaw was found in the kernel's Integrity Measurement Architecture (IMA). Changes made by an attacker might not be discovered by IMA, if SELinux was disabled, and a new IMA rule was loaded. (CVE-2011-0006)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2011-0712)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093).

This Linux kernel update fixes various security issues and bugs in the SUSE Linux Enterprise 10 SP4 kernel.

The following security issues have been fixed :

  - kernel/taskstats.c in the Linux kernel allowed local     users to obtain sensitive I/O statistics by sending     taskstats commands to a netlink socket, as demonstrated     by discovering the length of another users password (a     side channel attack). (CVE-2011-2494)

  - net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux     kernel, when the nf_conntrack_ipv6 module is enabled,     allowed remote attackers to cause a denial of service     (NULL pointer dereference and system crash) via certain     types of fragmented IPv6 packets. (CVE-2012-2744)

  - Use-after-free vulnerability in the xacct_add_tsk     function in kernel/tsacct.c in the Linux kernel allowed     local users to obtain potentially sensitive information     from kernel memory or cause a denial of service (system     crash) via a taskstats TASKSTATS_CMD_ATTR_PID command.
    (CVE-2012-3510)

  - The user_update function in security/keys/user_defined.c     in the Linux kernel 2.6 allowed local users to cause a     denial of service (NULL pointer dereference and kernel     oops) via vectors related to a user-defined key and     updating a negative key into a fully instantiated key.
    (CVE-2011-4110)

  - The ib_uverbs_poll_cq function in     drivers/infiniband/core/uverbs_cmd.c in the Linux kernel     did not initialize a certain response buffer, which     allowed local users to obtain potentially sensitive     information from kernel memory via vectors that cause     this buffer to be only partially filled, a different     vulnerability than CVE-2010-4649. (CVE-2011-1044)

  - Heap-based buffer overflow in the udf_load_logicalvol     function in fs/udf/super.c in the Linux kernel allowed     remote attackers to cause a denial of service (system     crash) or possibly have unspecified other impact via a     crafted UDF filesystem. (CVE-2012-3400)

  - The sock_alloc_send_pskb function in net/core/sock.c in     the Linux kernel did not properly validate a certain     length value, which allowed local users to cause a     denial of service (heap-based buffer overflow and system     crash) or possibly gain privileges by leveraging access     to a TUN/TAP device. (CVE-2012-2136)

  - A small denial of service leak in dropping syn+fin     messages was fixed. (CVE-2012-2663)

The following non-security issues have been fixed :

Packaging :

  - kbuild: Fix gcc -x syntax (bnc#773831). NFS :

  - knfsd: An assortment of little fixes to the sunrpc cache     code. (bnc#767766)

  - knfsd: Unexport cache_fresh and fix a small race.
    (bnc#767766)

  - knfsd: nfsd: do not drop silently on upcall deferral.
    (bnc#767766)

  - knfsd: svcrpc: remove another silent drop from deferral     code. (bnc#767766)

  - sunrpc/cache: simplify cache_fresh_locked and     cache_fresh_unlocked. (bnc#767766)

  - sunrpc/cache: recheck cache validity after     cache_defer_req. (bnc#767766)

  - sunrpc/cache: use list_del_init for the list_head     entries in cache_deferred_req. (bnc#767766)

  - sunrpc/cache: avoid variable over-loading in     cache_defer_req. (bnc#767766)

  - sunrpc/cache: allow thread to block while waiting for     cache update. (bnc#767766)

  - sunrpc/cache: Fix race in sunrpc/cache introduced by     patch to allow thread to block while waiting for cache     update. (bnc#767766)

  - sunrpc/cache: Another fix for race problem with sunrpc     cache deferal. (bnc#767766)

  - knfsd: nfsd: make all exp_finding functions return
    -errnos on err. (bnc#767766)

  - Fix kabi breakage in previous nfsd patch series.
    (bnc#767766)

  - nfsd: Work around incorrect return type for     wait_for_completion_interruptible_timeout. (bnc#767766)

  - nfs: Fix a potential file corruption issue when writing.
    (bnc#773272)

  - nfs: Allow sync writes to be multiple pages.
    (bnc#763526)

  - nfs: fix reference counting for NFSv4 callback thread.
    (bnc#767504)

  - nfs: flush signals before taking down callback thread.
    (bnc#767504)

  - nfsv4: Ensure nfs_callback_down() calls svc_destroy()     (bnc#767504). SCSI :

  - SCSI/ch: Check NULL for kmalloc() return. (bnc#783058)

  - drivers/scsi/aic94xx/aic94xx_init.c: correct the size     argument to kmalloc. (bnc#783058)

  - block: fail SCSI passthrough ioctls on partition     devices. (bnc#738400)

  - dm: do not forward ioctls from logical volumes to the     underlying device. (bnc#738400)

  - vmware: Fix VMware hypervisor detection (bnc#777575,     bnc#770507). S/390 :

  - lgr: Make lgr_page static (bnc#772409,LTC#83520).

  - zfcp: Fix oops in _blk_add_trace()     (bnc#772409,LTC#83510).

  - kernel: Add z/VM LGR detection (bnc#767277,LTC#RAS1203).

  - be2net: Fix EEH error reset before a flash dump     completes. (bnc#755546)

  - mptfusion: fix msgContext in mptctl_hp_hostinfo.
    (bnc#767939)

  - PCI: Fix bus resource assignment on 32 bits with 64b     resources. . (bnc#762581)

  - PCI: fix up setup-bus.c #ifdef. (bnc#762581)

  - x86: powernow-k8: Fix indexing issue. (bnc#758985)

  - net: Fix race condition about network device name     allocation. (bnc#747576)

XEN :

  - smpboot: adjust ordering of operations.

  - xen/x86-64: provide a memset() that can deal with 4Gb or     above at a time. (bnc#738528)

  - xen: fix VM_FOREIGN users after c/s 878:eba6fe6d8d53.
    (bnc#760974)

  - xen/gntdev: fix multi-page slot allocation. (bnc#760974)

Security fixes :

  - An integer overflow flaw in ib_uverbs_poll_cq() could     allow a local, unprivileged user to cause a denial of     service or escalate their privileges. (CVE-2010-4649,     Important)

  - An integer signedness flaw in drm_modeset_ctl() could     allow a local, unprivileged user to cause a denial of     service or escalate their privileges. (CVE-2011-1013,     Important)

  - The Radeon GPU drivers in the Linux kernel were missing     sanity checks for the Anti Aliasing (AA) resolve     register values which could allow a local, unprivileged     user to cause a denial of service or escalate their     privileges on systems using a graphics card from the ATI     Radeon R300, R400, or R500 family of cards.
    (CVE-2011-1016, Important)

  - A flaw in dccp_rcv_state_process() could allow a remote     attacker to cause a denial of service, even when the     socket was already closed. (CVE-2011-1093, Important)

  - A flaw in the Linux kernel's Stream Control Transmission     Protocol (SCTP) implementation could allow a remote     attacker to cause a denial of service if the sysctl     'net.sctp.addip_enable' and 'auth_enable' variables were     turned on (they are off by default). (CVE-2011-1573,     Important)

  - A memory leak in the inotify_init() system call. In some     cases, it could leak a group, which could allow a local,     unprivileged user to eventually cause a denial of     service. (CVE-2010-4250, Moderate)

  - A missing validation of a null-terminated string data     structure element in bnep_sock_ioctl() could allow a     local user to cause an information leak or a denial of     service. (CVE-2011-1079, Moderate)

  - An information leak in bcm_connect() in the Controller     Area Network (CAN) Broadcast Manager implementation     could allow a local, unprivileged user to leak kernel     mode addresses in '/proc/net/can-bcm'. (CVE-2010-4565,     Low)

  - A flaw was found in the Linux kernel's Integrity     Measurement Architecture (IMA) implementation. When     SELinux was disabled, adding an IMA rule which was     supposed to be processed by SELinux would cause     ima_match_rules() to always succeed, ignoring any     remaining rules. (CVE-2011-0006, Low)

  - A missing initialization flaw in the XFS file system     implementation could lead to an information leak.
    (CVE-2011-0711, Low)

  - Buffer overflow flaws in snd_usb_caiaq_audio_init() and     snd_usb_caiaq_midi_init() could allow a local,     unprivileged user with access to a Native Instruments     USB audio device to cause a denial of service or     escalate their privileges. (CVE-2011-0712, Low)

  - The start_code and end_code values in '/proc/[pid]/stat'     were not protected. In certain scenarios, this flaw     could be used to defeat Address Space Layout     Randomization (ASLR). (CVE-2011-0726, Low)

  - A flaw in dev_load() could allow a local user who has     the CAP_NET_ADMIN capability to load arbitrary modules     from '/lib/modules/', instead of only netdev modules.
    (CVE-2011-1019, Low)

  - A flaw in ib_uverbs_poll_cq() could allow a local,     unprivileged user to cause an information leak.
    (CVE-2011-1044, Low)

  - A missing validation of a null-terminated string data     structure element in do_replace() could allow a local     user who has the CAP_NET_ADMIN capability to cause an     information leak. (CVE-2011-1080, Low)

This update also fixes various bugs.

This update also adds an enhancement.

  - This update provides VLAN null tagging support (VLAN ID     0 can be used in tags).

The system must be rebooted for this update to take effect.

a. ESX third-party update for Service Console kernel      The ESX Service Console Operating System (COS) kernel is updated to    kernel-2.6.18-274.3.1.el5 to fix multiple security issues in the    COS kernel.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2011-0726, CVE-2011-1078, CVE-2011-1079,    CVE-2011-1080, CVE-2011-1093, CVE-2011-1163, CVE-2011-1166,    CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-1494,    CVE-2011-1495, CVE-2011-1577, CVE-2011-1763, CVE-2010-4649,    CVE-2011-0695, CVE-2011-0711, CVE-2011-1044, CVE-2011-1182,    CVE-2011-1573, CVE-2011-1576, CVE-2011-1593, CVE-2011-1745,    CVE-2011-1746, CVE-2011-1776, CVE-2011-1936, CVE-2011-2022,    CVE-2011-2213, CVE-2011-2492, CVE-2011-1780, CVE-2011-2525,    CVE-2011-2689, CVE-2011-2482, CVE-2011-2491, CVE-2011-2495,    CVE-2011-2517, CVE-2011-2519, CVE-2011-2901 to these issues.
  b. ESX third-party update for Service Console cURL RPM      The ESX Service Console (COS) curl RPM is updated to cURL-7.15.5.9    resolving a security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the name CVE-2011-2192 to this issue.
  c. ESX third-party update for Service Console nspr and nss RPMs      The ESX Service Console (COS) nspr and nss RPMs are updated to    nspr-4.8.8-1.el5_7 and nss-3.12.10-4.el5_7 respectively resolving    a security issues.
     A Certificate Authority (CA) issued fraudulent SSL certificates and    Netscape Portable Runtime (NSPR) and Network Security Services (NSS)    contain the built-in tokens of this fraudulent Certificate    Authority. This update renders all SSL certificates signed by the    fraudulent CA as untrusted for all uses.
  d. ESX third-party update for Service Console rpm RPMs      The ESX Service Console Operating System (COS) rpm packages are    updated to popt-1.10.2.3-22.el5_7.2, rpm-4.4.2.3-22.el5_7.2,    rpm-libs-4.4.2.3-22.el5_7.2 and rpm-python-4.4.2.3-22.el5_7.2    which fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2010-2059 and CVE-2011-3378 to these    issues.
  e. ESX third-party update for Service Console samba RPMs      The ESX Service Console Operating System (COS) samba packages are    updated to samba-client-3.0.33-3.29.el5_7.4,    samba-common-3.0.33-3.29.el5_7.4 and    libsmbclient-3.0.33-3.29.el5_7.4 which fixes multiple security    issues in the Samba client.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2010-0547, CVE-2010-0787, CVE-2011-1678,    CVE-2011-2522 and CVE-2011-2694 to these issues.
     Note that ESX does not include the Samba Web Administration Tool    (SWAT) and therefore ESX COS is not affected by CVE-2011-2522 and    CVE-2011-2694.
  f. ESX third-party update for Service Console python package      The ESX Service Console (COS) python package is updated to    2.4.3-44 which fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2009-3720, CVE-2010-3493, CVE-2011-1015 and    CVE-2011-1521 to these issues.
  g. ESXi update to third-party component python      The python third-party library is updated to python 2.5.6 which    fixes multiple security issues.
     The Common Vulnerabilities and Exposures project (cve.mitre.org) has    assigned the names CVE-2009-3560, CVE-2009-3720, CVE-2010-1634,    CVE-2010-2089, and CVE-2011-1521 to these issues.

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. (CVE-2010-3859)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the socket filters did not correctly initialize structure memory. A local attacker could create malicious filters to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4158)

Dan Rosenberg discovered that the Linux kernel L2TP implementation contained multiple integer signedness errors. A local attacker could exploit this to to crash the kernel, or possibly gain root privileges. (CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)

Alex Shi and Eric Dumazet discovered that the network stack did not correctly handle packet backlogs. A remote attacker could exploit this by sending a large amount of network traffic to cause the system to run out of memory, leading to a denial of service. (CVE-2010-4251, CVE-2010-4805)

It was discovered that the ICMP stack did not correctly handle certain unreachable messages. If a remote attacker were able to acquire a socket lock, they could send specially crafted traffic that would crash the system, leading to a denial of service.
(CVE-2010-4526)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.
(CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.
(CVE-2011-2699)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3296, CVE-2010-3297)

Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3858)

Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. (CVE-2010-3859)

Dan Rosenberg discovered that the CAN protocol on 64bit systems did not correctly calculate the size of certain buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2010-3874)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

Dan Rosenberg discovered that IPC structures were not correctly initialized on 64bit systems. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4073)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the RME Hammerfall DSP audio interface driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4080, CVE-2010-4081)

Dan Rosenberg discovered that the VIA video driver did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4082)

Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

James Bottomley discovered that the ICP vortex storage array controller driver did not validate certain sizes. A local attacker on a 64bit system could exploit this to crash the kernel, leading to a denial of service. (CVE-2010-4157)

Dan Rosenberg discovered that the Linux kernel L2TP implementation contained multiple integer signedness errors. A local attacker could exploit this to to crash the kernel, or possibly gain root privileges. (CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not calculate page counts correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

Dave Jones discovered that the mprotect system call did not correctly handle merged VMAs. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4169)

Dan Rosenberg discovered that the RDS protocol did not correctly check ioctl arguments. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4175)

Alan Cox discovered that the HCI UART driver did not correctly check if a write operation was available. If the mmap_min-addr sysctl was changed from the Ubuntu default to a value of 0, a local attacker could exploit this flaw to gain root privileges. (CVE-2010-4242)

Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

It was discovered that named pipes did not correctly handle certain fcntl calls. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4256)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit.
(CVE-2010-4565)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Kees Cook discovered that some ethtool functions did not correctly clear heap memory. A local attacker with CAP_NET_ADMIN privileges could exploit this to read portions of kernel heap memory, leading to a loss of privacy. (CVE-2010-4655)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory. A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy.
(CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges.
(CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

Marek Olsak discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory. (CVE-2011-1016)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system.
(CVE-2011-1019)

It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)

Dan Rosenberg discovered that some ALSA drivers did not correctly check the adapter index during ioctl calls. If this driver was loaded, a local attacker could make a specially crafted ioctl call to gain root privileges. (CVE-2011-1169)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493)

Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. (CVE-2011-1833)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service.
(CVE-2011-2484)

It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy.
(CVE-2011-2492)

Fernando Gont discovered that the IPv6 stack used predictable fragment identification numbers. A remote attacker could exploit this to exhaust network resources, leading to a denial of service.
(CVE-2011-2699)

The performance counter subsystem did not correctly handle certain counters. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2918)

It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3698)

Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user.
(CVE-2010-3865)

Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3875)

Vasiliy Kulikov discovered that the Linux kernel sockets implementation did not properly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3876)

Vasiliy Kulikov discovered that the TIPC interface did not correctly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3877)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

Vasiliy Kulikov discovered that kvm did not correctly clear memory. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy. (CVE-2010-3881)

Dan Rosenberg discovered that multiple terminal ioctls did not correctly initialize structure memory. A local attacker could exploit this to read portions of kernel stack memory, leading to a loss of privacy. (CVE-2010-4075, CVE-2010-4076, CVE-2010-4077)

Dan Rosenberg discovered that the ivtv V4L driver did not correctly initialize certian structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4079)

Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

Dan Rosenberg discovered that the SCSI subsystem did not correctly validate iov segments. A local attacker with access to a SCSI device could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2010-4163, CVE-2010-4668)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

Nelson Elhage discovered that Econet did not correctly handle AUN packets over UDP. A local attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2010-4342)

Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
(CVE-2010-4346)

Dan Rosenberg discovered that the OSS subsystem did not handle name termination correctly. A local attacker could exploit this crash the system or gain root privileges. (CVE-2010-4527)

Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)

Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit.
(CVE-2010-4565)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)

Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)

Dan Rosenberg discovered that XFS did not correctly initialize memory.
A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy. (CVE-2011-0711)

Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2011-0712)

Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)

Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1013)

Marek Olsak discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory.
(CVE-2011-1016)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system. (CVE-2011-1019)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service.
(CVE-2011-1082)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Timo Warns discovered that OSF partition parsing routines did not correctly clear memory. A local attacker with physical access could plug in a specially crafted block device to read kernel memory, leading to a loss of privacy. (CVE-2011-1163)

Dan Rosenberg discovered that some ALSA drivers did not correctly check the adapter index during ioctl calls. If this driver was loaded, a local attacker could make a specially crafted ioctl call to gain root privileges. (CVE-2011-1169)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)

Ryan Sweat discovered that the GRO code did not correctly validate memory. In some configurations on systems using VLANs, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2011-1478)

Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Timo Warns discovered that the GUID partition parsing routines did not correctly validate certain structures. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1577)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Dan Rosenberg discovered that IPC structures were not correctly initialized on 64bit systems. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4073)

Steve Chen discovered that setsockopt did not correctly check MSS values. A local attacker could make a specially crafted socket call to crash the system, leading to a denial of service. (CVE-2010-4165)

Vladymyr Denysov discovered that Xen virtual CD-ROM devices were not handled correctly. A local attacker in a guest could make crafted blkback requests that would crash the host, leading to a denial of service. (CVE-2010-4238)

Vegard Nossum discovered that memory garbage collection was not handled correctly for active sockets. A local attacker could exploit this to allocate all available kernel memory, leading to a denial of service. (CVE-2010-4249)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

Dan Rosenberg discovered that XFS did not correctly initialize memory.
A local attacker could make crafted ioctl calls to leak portions of kernel stack memory, leading to a loss of privacy. (CVE-2011-0711)

Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)

Neil Horman discovered that NFSv4 did not correctly handle certain orders of operation with ACL data. A remote attacker with access to an NFSv4 mount could exploit this to crash the system, leading to a denial of service. (CVE-2011-1090)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could exploit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important)

* A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service.
(CVE-2011-0695, Important)

* A flaw in the Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' variable was turned on (it is off by default). (CVE-2011-1573, Important)

* Flaws in the AGPGART driver implementation when handling certain IOCTL commands could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1745, CVE-2011-2022, Important)

* An integer overflow flaw in agp_allocate_memory() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1746, Important)

* A flaw allowed napi_reuse_skb() to be called on VLAN (virtual LAN) packets. An attacker on the local network could trigger this flaw by sending specially crafted packets to a target system, possibly causing a denial of service. (CVE-2011-1576, Moderate)

* An integer signedness error in next_pidmap() could allow a local, unprivileged user to cause a denial of service. (CVE-2011-1593, Moderate)

* A flaw in the way the Xen hypervisor implementation handled CPUID instruction emulation during virtual machine exits could allow an unprivileged guest user to crash a guest. This only affects systems that have an Intel x86 processor with the Intel VT-x extension enabled. (CVE-2011-1936, Moderate)

* A flaw in inet_diag_bc_audit() could allow a local, unprivileged user to cause a denial of service (infinite loop). (CVE-2011-2213, Moderate)

* A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low)

* A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low)

* A missing validation check was found in the signals implementation.
A local, unprivileged user could use this flaw to send signals via the sigqueueinfo system call, with the si_code set to SI_TKILL and with spoofed process and user IDs, to other processes. Note: This flaw does not allow existing permission checks to be bypassed; signals can only be sent if your privileges allow you to already do so. (CVE-2011-1182, Low)

* A heap overflow flaw in the EFI GUID Partition Table (GPT) implementation could allow a local attacker to cause a denial of service by mounting a disk containing specially crafted partition tables. (CVE-2011-1776, Low)

* Structure padding in two structures in the Bluetooth implementation was not initialized properly before being copied to user-space, possibly allowing local, unprivileged users to leak kernel stack memory to user-space. (CVE-2011-2492, Low)

Red Hat would like to thank Jens Kuehnel for reporting CVE-2011-0695;
Vasiliy Kulikov for reporting CVE-2011-1745, CVE-2011-2022, and CVE-2011-1746; Ryan Sweat for reporting CVE-2011-1576; Robert Swiecki for reporting CVE-2011-1593; Dan Rosenberg for reporting CVE-2011-2213 and CVE-2011-0711; Julien Tinnes of the Google Security Team for reporting CVE-2011-1182; Timo Warns for reporting CVE-2011-1776; and Marek Kroemeke and Filip Palian for reporting CVE-2011-2492.

Bug fix documentation will be available shortly from the Technical Notes document linked to in the References.

Users should upgrade to these updated packages, which contain backported patches to correct these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect.

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2011:0927 advisory.

  - kernel: IB/uverbs: Handle large number of entries in poll CQ (CVE-2010-4649, CVE-2011-1044)

  - kernel: panic in ib_cm:cm_work_handler (CVE-2011-0695)

  - kernel: xfs: prevent leaking uninitialized stack memory in FSGEOMETRY_V1 (CVE-2011-0711)

  - kernel signal spoofing issue (CVE-2011-1182)

  - kernel: sctp: fix to calc the INIT/INIT-ACK chunk length correctly to set (CVE-2011-1573)

  - kernel: net: Fix memory leak/corruption on VLAN GRO_DROP (CVE-2011-1576)

  - kernel: proc: signedness issue in next_pidmap() (CVE-2011-1593)

  - kernel: agp: insufficient pg_start parameter checking in AGPIOC_BIND and AGPIOC_UNBIND ioctls     (CVE-2011-1745, CVE-2011-2022)

  - kernel: agp: insufficient page_count parameter checking in agp_allocate_memory() (CVE-2011-1746)

  - kernel: validate size of EFI GUID partition entries (CVE-2011-1776)

  - kernel: xen: vmx: insecure cpuid vmexit (CVE-2011-1936)

  - kernel: inet_diag: insufficient validation (CVE-2011-2213)

  - kernel: bluetooth: l2cap and rfcomm: fix 1 byte infoleak to userspace (CVE-2011-2492)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. (CVE-2011-1927)

Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)

Timo Warns discovered that the LDM disk partition handling code did not correctly handle certain values. By inserting a specially crafted disk device, a local attacker could exploit this to gain root privileges. (CVE-2011-1017)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1078)

Vasiliy Kulikov discovered that the Bluetooth stack did not correctly check that device name strings were NULL terminated. A local attacker could exploit this to crash the system, leading to a denial of service, or leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1079)

Vasiliy Kulikov discovered that bridge network filtering did not check that name fields were NULL terminated. A local attacker could exploit this to leak contents of kernel stack memory, leading to a loss of privacy. (CVE-2011-1080)

Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service. (CVE-2011-1093)

Peter Huewe discovered that the TPM device did not correctly initialize memory. A local attacker could exploit this to read kernel heap memory contents, leading to a loss of privacy. (CVE-2011-1160)

Vasiliy Kulikov discovered that the netfilter code did not check certain strings copied from userspace. A local attacker with netfilter access could exploit this to read kernel memory or crash the system, leading to a denial of service. (CVE-2011-1170, CVE-2011-1171, CVE-2011-1172, CVE-2011-2534)

Vasiliy Kulikov discovered that the Acorn Universal Networking driver did not correctly initialize memory. A remote attacker could send specially crafted traffic to read kernel stack memory, leading to a loss of privacy. (CVE-2011-1173)

Dan Rosenberg discovered that the IRDA subsystem did not correctly check certain field sizes. If a system was using IRDA, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-1180)

Dan Rosenberg reported errors in the OSS (Open Sound System) MIDI interface. A local attacker on non-x86 systems might be able to cause a denial of service. (CVE-2011-1476)

Dan Rosenberg reported errors in the kernel's OSS (Open Sound System) driver for Yamaha FM synthesizer chips. A local user can exploit this to cause memory corruption, causing a denial of service or privilege escalation. (CVE-2011-1477)

It was discovered that the security fix for CVE-2010-4250 introduced a regression. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1479)

Dan Rosenberg discovered that MPT devices did not correctly validate certain values in ioctl calls. If these drivers were loaded, a local attacker could exploit this to read arbitrary kernel memory, leading to a loss of privacy. (CVE-2011-1494, CVE-2011-1495)

Tavis Ormandy discovered that the pidmap function did not correctly handle large requests. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1593)

Oliver Hartkopp and Dave Jones discovered that the CAN network driver did not correctly validate certain socket structures. If this driver was loaded, a local attacker could crash the system, leading to a denial of service. (CVE-2011-1598, CVE-2011-1748)

Vasiliy Kulikov discovered that the AGP driver did not check certain ioctl values. A local attacker with access to the video subsystem could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-1745, CVE-2011-2022)

Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. (CVE-2011-1746)

Dan Rosenberg reported an error in the old ABI compatibility layer of ARM kernels. A local attacker could exploit this flaw to cause a denial of service or gain root privileges. (CVE-2011-1759)

Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770)

Ben Greear discovered that CIFS did not correctly handle direct I/O. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-1771)

Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1776)

It was discovered that an mmap() call with the MAP_PRIVATE flag on '/dev/zero' was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service.
(CVE-2011-2479)

Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2496)

The linux kernel did not properly account for PTE pages when deciding which task to kill in out of memory conditions. A local, unprivileged could exploit this flaw to cause a denial of service. (CVE-2011-2498)

A flaw was found in the b43 driver in the Linux kernel. An attacker could use this flaw to cause a denial of service if the system has an active wireless interface using the b43 driver. (CVE-2011-3359)

Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had no prefixpaths. A local attacker with access to a CIFS partition could exploit this to crash the system, leading to a denial of service. (CVE-2011-3363)

Dan Rosenberg discovered flaws in the linux Rose (X.25 PLP) layer used by amateur radio. A local user or a remote user on an X.25 network could exploit these flaws to execute arbitrary code as root.
(CVE-2011-4913).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated kernel packages that fix several security issues, various bugs, and add an enhancement are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security fixes :

* An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2010-4649, Important)

* An integer signedness flaw in drm_modeset_ctl() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. (CVE-2011-1013, Important)

* The Radeon GPU drivers in the Linux kernel were missing sanity checks for the Anti Aliasing (AA) resolve register values which could allow a local, unprivileged user to cause a denial of service or escalate their privileges on systems using a graphics card from the ATI Radeon R300, R400, or R500 family of cards. (CVE-2011-1016, Important)

* A flaw in dccp_rcv_state_process() could allow a remote attacker to cause a denial of service, even when the socket was already closed.
(CVE-2011-1093, Important)

* A flaw in the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation could allow a remote attacker to cause a denial of service if the sysctl 'net.sctp.addip_enable' and 'auth_enable' variables were turned on (they are off by default). (CVE-2011-1573, Important)

* A memory leak in the inotify_init() system call. In some cases, it could leak a group, which could allow a local, unprivileged user to eventually cause a denial of service. (CVE-2010-4250, Moderate)

* A missing validation of a null-terminated string data structure element in bnep_sock_ioctl() could allow a local user to cause an information leak or a denial of service. (CVE-2011-1079, Moderate)

* An information leak in bcm_connect() in the Controller Area Network (CAN) Broadcast Manager implementation could allow a local, unprivileged user to leak kernel mode addresses in '/proc/net/can-bcm'. (CVE-2010-4565, Low)

* A flaw was found in the Linux kernel's Integrity Measurement Architecture (IMA) implementation. When SELinux was disabled, adding an IMA rule which was supposed to be processed by SELinux would cause ima_match_rules() to always succeed, ignoring any remaining rules.
(CVE-2011-0006, Low)

* A missing initialization flaw in the XFS file system implementation could lead to an information leak. (CVE-2011-0711, Low)

* Buffer overflow flaws in snd_usb_caiaq_audio_init() and snd_usb_caiaq_midi_init() could allow a local, unprivileged user with access to a Native Instruments USB audio device to cause a denial of service or escalate their privileges. (CVE-2011-0712, Low)

* The start_code and end_code values in '/proc/[pid]/stat' were not protected. In certain scenarios, this flaw could be used to defeat Address Space Layout Randomization (ASLR). (CVE-2011-0726, Low)

* A flaw in dev_load() could allow a local user who has the CAP_NET_ADMIN capability to load arbitrary modules from '/lib/modules/', instead of only netdev modules. (CVE-2011-1019, Low)

* A flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause an information leak. (CVE-2011-1044, Low)

* A missing validation of a null-terminated string data structure element in do_replace() could allow a local user who has the CAP_NET_ADMIN capability to cause an information leak. (CVE-2011-1080, Low)

Red Hat would like to thank Vegard Nossum for reporting CVE-2010-4250;
Vasiliy Kulikov for reporting CVE-2011-1079, CVE-2011-1019, and CVE-2011-1080; Dan Rosenberg for reporting CVE-2010-4565 and CVE-2011-0711; Rafael Dominguez Vega for reporting CVE-2011-0712; and Kees Cook for reporting CVE-2011-0726.

This update also fixes various bugs and adds an enhancement.
Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.

Users should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs and add the enhancement noted in the Technical Notes. The system must be rebooted for this update to take effect.

Stable update 2.6.34.8, extra bug fixes, some basic hardware backports for Intel Sandy Bridge upon request. Update to kernel 2.6.34.8:
http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.34/ChangeLog
-2.6.34.8

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user.
(CVE-2010-3865)

Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3875)

Vasiliy Kulikov discovered that the Linux kernel sockets implementation did not properly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3876)

Vasiliy Kulikov discovered that the TIPC interface did not correctly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3877)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

Krishna Gudipati discovered that the bfa adapter driver did not correctly initialize certain structures. A local attacker could read files in /sys to crash the system, leading to a denial of service.
(CVE-2010-4343)

Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
(CVE-2010-4346)

It was discovered that the ICMP stack did not correctly handle certain unreachable messages. If a remote attacker were able to acquire a socket lock, they could send specially crafted traffic that would crash the system, leading to a denial of service. (CVE-2010-4526)

Dan Rosenberg discovered that the OSS subsystem did not handle name termination correctly. A local attacker could exploit this crash the system or gain root privileges. (CVE-2010-4527)

An error was reported in the kernel's ORiNOCO wireless driver's handling of TKIP countermeasures. This reduces the amount of time an attacker needs breach a wireless network using WPA+TKIP for security.
(CVE-2010-4648)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

An error was discovered in the kernel's handling of CUSE (Character device in Userspace). A local attacker might exploit this flaw to escalate privilege, if access to /dev/cuse has been modified to allow non-root users. (CVE-2010-4650)

A flaw was found in the kernel's Integrity Measurement Architecture (IMA). Changes made by an attacker might not be discovered by IMA, if SELinux was disabled, and a new IMA rule was loaded. (CVE-2011-0006).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that KVM did not correctly initialize certain CPU registers. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-3698)

Thomas Pollet discovered that the RDS network protocol did not check certain iovec buffers. A local attacker could exploit this to crash the system or possibly execute arbitrary code as the root user.
(CVE-2010-3865)

Vasiliy Kulikov discovered that the Linux kernel X.25 implementation did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3875)

Vasiliy Kulikov discovered that the Linux kernel sockets implementation did not properly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-3876)

Vasiliy Kulikov discovered that the TIPC interface did not correctly initialize certain structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-3877)

Nelson Elhage discovered that the Linux kernel IPv4 implementation did not properly audit certain bytecodes in netlink messages. A local attacker could exploit this to cause the kernel to hang, leading to a denial of service. (CVE-2010-3880)

Dan Rosenberg discovered that the ivtv V4L driver did not correctly initialize certian structures. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4079)

Dan Rosenberg discovered that the semctl syscall did not correctly clear kernel memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

It was discovered that multithreaded exec did not handle CPU timers correctly. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2010-4248)

Vegard Nossum discovered a leak in the kernel's inotify_init() system call. A local, unprivileged user could exploit this to cause a denial of service. (CVE-2010-4250)

Nelson Elhage discovered that Econet did not correctly handle AUN packets over UDP. A local attacker could send specially crafted traffic to crash the system, leading to a denial of service.
(CVE-2010-4342)

Tavis Ormandy discovered that the install_special_mapping function could bypass the mmap_min_addr restriction. A local attacker could exploit this to mmap 4096 bytes below the mmap_min_addr area, possibly improving the chances of performing NULL pointer dereference attacks.
(CVE-2010-4346)

Dan Rosenberg discovered that the OSS subsystem did not handle name termination correctly. A local attacker could exploit this crash the system or gain root privileges. (CVE-2010-4527)

An error was reported in the kernel's ORiNOCO wireless driver's handling of TKIP countermeasures. This reduces the amount of time an attacker needs breach a wireless network using WPA+TKIP for security.
(CVE-2010-4648)

Dan Carpenter discovered that the Infiniband driver did not correctly handle certain requests. A local user could exploit this to crash the system or potentially gain root privileges. (CVE-2010-4649, CVE-2011-1044)

An error was discovered in the kernel's handling of CUSE (Character device in Userspace). A local attacker might exploit this flaw to escalate privilege, if access to /dev/cuse has been modified to allow non-root users. (CVE-2010-4650)

A flaw was found in the kernel's Integrity Measurement Architecture (IMA). Changes made by an attacker might not be discovered by IMA, if SELinux was disabled, and a new IMA rule was loaded. (CVE-2011-0006)

It was discovered that some import kernel threads can be blocked by a user level process. An unprivileged local user could exploit this flaw to cause a denial of service. (CVE-2011-4621).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2011-0927.

ID	Name	Product	Family	Severity
89105	VMware ESX / ESXi Service Console and Third-Party Libraries Multiple Vulnerabilities (VMSA-2012-0001) (remote check)	Nessus	Misc.	high
83563	SUSE SLED10 / SLES10 Security Update : kernel (SUSE-SU-2012:1391-1)	Nessus	SuSE Local Security Checks	high
79507	OracleVM 2.2 : kernel (OVMSA-2013-0039)	Nessus	OracleVM Local Security Checks	high
68416	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2011-2015)	Nessus	Oracle Linux Local Security Checks	medium
68304	Oracle Linux 5 : kernel (ELSA-2011-0927)	Nessus	Oracle Linux Local Security Checks	medium
68273	Oracle Linux 6 : kernel (ELSA-2011-0498)	Nessus	Oracle Linux Local Security Checks	medium
65103	Ubuntu 10.04 LTS / 10.10 : linux-mvl-dove vulnerabilities (USN-1093-1)	Nessus	Ubuntu Local Security Checks	high
62676	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 8325)	Nessus	SuSE Local Security Checks	high
62675	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 8324)	Nessus	SuSE Local Security Checks	high
61035	Scientific Linux Security Update : kernel on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
57749	VMSA-2012-0001 : VMware ESXi and ESX updates to third-party library and ESX Service Console	Nessus	VMware ESX Local Security Checks	high
56192	USN-1204-1 : linux-fsl-imx51 vulnerabilities	Nessus	Ubuntu Local Security Checks	high
56190	USN-1202-1 : linux-ti-omap4 vulnerabilities	Nessus	Ubuntu Local Security Checks	high
55785	Ubuntu 10.04 LTS : linux-lts-backport-maverick vulnerabilities (USN-1187-1)	Nessus	Ubuntu Local Security Checks	high
55784	Ubuntu 8.04 LTS : linux vulnerabilities (USN-1186-1)	Nessus	Ubuntu Local Security Checks	medium
55609	CentOS 5 : kernel (CESA-2011:0927)	Nessus	CentOS Local Security Checks	medium
55597	RHEL 5 : kernel (RHSA-2011:0927)	Nessus	Red Hat Local Security Checks	medium
55591	Ubuntu 11.04 : linux vulnerabilities (USN-1167-1)	Nessus	Ubuntu Local Security Checks	medium
53867	RHEL 6 : kernel (RHSA-2011:0498)	Nessus	Red Hat Local Security Checks	high
52571	Fedora 13 : kernel-2.6.34.8-68.fc13 (2011-2134)	Nessus	Fedora Local Security Checks	medium
52528	Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1080-2)	Nessus	Ubuntu Local Security Checks	high
52500	Ubuntu 10.10 : linux vulnerabilities (USN-1081-1)	Nessus	Ubuntu Local Security Checks	high
52499	Ubuntu 10.04 LTS : linux vulnerabilities (USN-1080-1)	Nessus	Ubuntu Local Security Checks	high
801507	CentOS RHSA-2011-0927 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2011-1044

medium

Tenable Plugins

high

high

high

medium

medium

medium

high

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medium

medium

medium

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medium

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high