The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in dvb-core/dvb_net.c in the dvb driver in the Linux kernel 2.6.17.8 allows remote attackers to cause a denial of service (crash) via an SNDU length of 0 in a ULE packet.

Updated kernel packages that fix security issues are now available. 

This update has been rated as having important security impact by the Red Hat Security Response Team. 

The Linux kernel handles the basic functions of the operating system. 

These new kernel packages contain fixes for the security issues described below :


From Red Hat Security Advisory 2006-0617 :

* a flaw in the proc file system that allowed a local user to use a suid-wrapper for scripts to gain root privileges (CVE-2006-3626, Important)

* a flaw in the SCTP implementation that allowed a local user to cause a denial of service (panic) or to possibly gain root privileges (CVE-2006-3745, Important)

* a flaw in NFS exported ext2/ext3 partitions when handling invalid inodes that allowed a remote authenticated user to cause a denial of service (filesystem panic) (CVE-2006-3468, Important)

* a flaw in the restore_all code path of the 4/4GB split support of non-hugemem kernels that allowed a local user to cause a denial of service (panic) (CVE-2006-2932, Important)

* a flaw in IPv4 netfilter handling for the unlikely use of SNMP NAT processing that allowed a remote user to cause a denial of service (crash) or potential memory corruption (CVE-2006-2444, Moderate)

* a flaw in the DVD handling of the CDROM driver that could be used together with a custom built USB device to gain root privileges (CVE-2006-2935, Moderate)

* a flaw in the handling of O_DIRECT writes that allowed a local user to cause a denial of service (memory consumption) (CVE-2004-2660, Low)

* a flaw in the SCTP chunk length handling that allowed a remote user to cause a denial of service (crash) (CVE-2006-1858, Low)

* a flaw in the input handling of the ftdi_sio driver that allowed a local user to cause a denial of service (memory consumption) (CVE-2006-2936, Low)

In addition a bugfix was added to enable a clean reboot for the IBM Pizzaro machines.

Red Hat would like to thank Wei Wang of McAfee Avert Labs and Kirill Korotaev for reporting issues fixed in this erratum.


From Red Hat Security Advisory ELSA-2006-0689 :

* a flaw in the SCTP support that allowed a local user to cause a denial of service (crash) with a specific SO_LINGER value.
(CVE-2006-4535, Important)

* a flaw in the hugepage table support that allowed a local user to cause a denial of service (crash). (CVE-2005-4811, Important)

* a flaw in the mprotect system call that allowed setting write permission for a read-only attachment of shared memory.
(CVE-2006-2071, Moderate)

* a flaw in HID0[31] (en_attn) register handling on PowerPC 970 systems that allowed a local user to cause a denial of service.
(crash) (CVE-2006-4093, Moderate)

* a flaw in the perfmon support of Itanium systems that allowed a local user to cause a denial of service by consuming all file descriptors. (CVE-2006-3741, Moderate)

* a flaw in the ATM subsystem. On systems with installed ATM hardware and configured ATM support, a remote user could cause a denial of service (panic) by accessing socket buffers memory after freeing them.
(CVE-2006-4997, Moderate)

* a flaw in the DVB subsystem. On systems with installed DVB hardware and configured DVB support, a remote user could cause a denial of service (panic) by sending a ULE SNDU packet with length of 0.
(CVE-2006-4623, Low)

* an information leak in the network subsystem that possibly allowed a local user to read sensitive data from kernel memory. (CVE-2006-0039, Low)

In addition, two bugfixes for the IPW-2200 wireless driver were included. The first one ensures that wireless management applications correctly identify IPW-2200 controlled devices, while the second fix ensures that DHCP requests using the IPW-2200 operate correctly.

Red Hat would like to thank Olof Johansson, Stephane Eranian and Solar Designer for reporting issues fixed in this erratum.

This kernel update fixes the following security problems :

  - A bug within the UDF filesystem that caused machine     hangs when truncating files on the filesystem was fixed.
    [#186226]. (CVE-2006-4145)

  - A potential crash when receiving IPX packets was fixed.
    This problem is thought not to be exploitable. [#197809]

  - A problem in DVB packet handling could be used to crash     the machine when receiving DVB net packages is active.
    [#201429]. (CVE-2006-4623)

  - A struct file leak was fixed in the perfmon(2) system     call on the Itanium architecture. [#202269].
    (CVE-2006-3741)

  - A malformed ELF image can be used on the Itanium     architecture to trigger a kernel crash (denial of     service) when a local attacker can supply it to be     started. [#203822]. (CVE-2006-4538)

  - A problem in the ATM protocol handling clip_mkip     function could be used by remote attackers to     potentially crash the machine. [#205383].
    (CVE-2006-4997)

CVE-2006-5757/

  - A problem in the grow_buffers function could be used to     crash or hang the machine using a corrupted filesystem.
    This affects filesystem types ISO9660 and NTFS.
    [#205384]. (CVE-2006-6060)

  - On the i386 architecture the ELFAGS content was not     correctly saved, which could be used by local attackers     to crash other programs using the AC and NT flag or to     escalate privileges by waiting for iopl privileges to be     leaked. [#209386]. (CVE-2006-5173)

  - On the S/390 architecture copy_from_user() could be used     by local attackers to read kernel memory. [#209880].
    (CVE-2006-5174)

  - A problem in IPv6 flowlabel handling can be used by     local attackers to hang the machine. [#216590].
    (CVE-2006-5619)

  - On the PowerPC architecture a syscall has been wired     without the proper futex implementation that can be     exploited by a local attacker to hang the machine.
    [#217295]. (CVE-2006-5648)

  - On the PowerPC architecture the proper futex     implementation was missing a fix for alignment check     which could be used by a local attacker to crash the     machine. [#217295]. (CVE-2006-5649)

  - A problem in cramfs could be used to crash the machine     during mounting a crafted cramfs image. This requires an     attacker to supply such a crafted image and have a user     mount it. [#218237]. (CVE-2006-5823)

  - A problem in the ext3 filesystem could be used by     attackers able to supply a crafted ext3 image to cause a     denial of service or further data corruption if a user     mounts this image. [#220288]. (CVE-2006-6053)

  - Missing return code checking in the HFS could be used to     crash machine when a user complicit attacker is able to     supply a specially crafted HFS image. [#221230].
    (CVE-2006-6056)

  - Multiple unspecified vulnerabilities in netfilter for     IPv6 code allow remote attackers to bypass intended     restrictions via fragmentation attack vectors, aka (1)     'ip6_tables protocol bypass bug' and (2) 'ip6_tables     extension header bypass bug'. [#221313]. (CVE-2006-4572)

  - An integer overflow in the networking bridge ioctl     starting with Kernel 2.6.7 could be used by local     attackers to overflow kernel memory buffers and     potentially escalate privileges [#222656].
    (CVE-2006-5751)

and the following non security bugs :

  - patches.fixes/dm-bio_list_merge-fix.diff: device-mapper     snapshot: bio_list fix [#117435]

  - patches.fixes/statd-refcount-fix: Fix refcounting     problems in host management in lockd. [#148009]

  - patches.fixes/i8042-reentry: Prevents i8042_interrupt()     from being reentered. [#167187]

  - patches.suse/bonding-workqueue: Replace system timer     with work queue in monitor functions. Remove rtnl_lock     calls in monitor functions added in original version.
    [#174843] [#205196]

  - patches.arch/i386-profile-pc: i386: Account spinlocks to     the caller during profiling for !FP kernels [#176770]

  - patches.arch/add-user-mode: i386/x86-64: Add user_mode     checks to profile_pc for oprofile [#176770]

  - patches.drivers/aic7xxx-max-sectors-adjust: Adjust     .max_sectors to 8192 for aic7xxx [#177059]

  - patches.xen/xen-x86-dcr-fallback: Add fallback when     XENMEM_exchange fails to replace contiguous region     [#181869]

  - patches.suse/lkcd-support-large-minor-number: LKCD     should support minor numbers > 256 [#185125]

  - patches.fixes/scsi-scan-limit-luns-seqscan-16k: Limit     sequential scan to 16k LUNs [#185164]

  - patches.drivers/powernow-ext-mask: Handle extended     powernow vid mask properly [#185654]

  - patches.fixes/xfs-unlink-recovery-fix: [XFS] unlink     recovery fix. ([#185796]

  - patches.suse/lkcd-dont-lose-one-page: Fix incorrect     dumps on machines with memory holes [#186169]

  - patches.fixes/ieee80211-orinoco_ap_workaround.diff:
    ieee80211: workaround for broken Orinoco access points     [#186879]

  - patches.fixes/sched-group-exclusive: Fix scheduler crash     with exclusive cpusets [#188921]

  - patches.fixes/bdev-imapping-race.diff: Fix race between     sync_single_inode() and iput() [#188950]

  - patches.fixes/scsi-scan-blist-update: Update blacklist     entries for EMC Symmetrix and HP EVA [#191648]

  - patches.arch/ia64-mce-output: Save/restore     oops_in_progress around printing machine checks     [#191901]

  - patches.fixes/scsi-add-device-oops-during-eh: Fix Oops     in scsi_add_device during EH [#195050]

  - Included a set of fixes for [#195940]

  - patches.fixes/dm-fix-alloc_dev-error_path.patch: call     free_minor in alloc_dev error path.
    patches.fixes/dm-snapshot-fix-origin_write-pe-submission     .patch: fix origin_write pending_exception submission. -

patches.fixes/dm-snapshot-replace-sibling-list.patch: replace sibling list.

  - patches.fixes/dm-snapshot-fix-pending-pe-ref.patch: fix     references to pending pe.

  - patches.fixes/dm-snapshot-fix-invalidation.patch: fix     invalidation. -

patches.fixes/dm-kcopyd-error-accumulation-fix.patch: kcopyd should accumulate errors.
patches.fixes/dm-snapshot-fix-metadata-error-handling.patch: fix read_metadata error handling.
patches.fixes/dm-snapshot-fix-metadata-writing-when-suspending.patch:
fix metadata writing when suspending.

  - patches.fixes/nat-t-pskb-pull.patch: Fix NAT-T VPN with     certain ethernet chips, in particular recent e1000     chips. [#196747]

  - patches.drivers/e1000-update: Update so that we no     longer break the 'Disable Packet Split for PCI express     adapters' driver option.

  - patches.fixes/e1000-no-packet-split: Discard, no longer     needed.

  - patches.arch/acpi_T60_ultrabay.patch: Add T60 ACPI dock     station path to ibm_acpi module [#196884]

  - patches.fixes/acpi_battery_hotplug_fix.patch: Workaround     ACPI misdesign to recon dock station when booting     undocked.

  - patches.fixes/acpi_ibm_dock_fix_not_present.patch:
    Workaround ACPI misdesign to recon dock station when     booting undocked [#196884]

  - patches.arch/x86_64-monotonic-clock: Fix monotonic clock     on x86-64 [#197548]

  - patches.fixes/nfs-truncate-race: Fix a race when     truncating over NFS and writing via mmap [#198023]

  - patches.drivers/libata-no-spindown-on-shutdown: Don't     spindown SCSI disks when rebooting [#198687]

  - patches.drivers/qla2xxx-reset-fix: allow reset for     qla2xxx via sg_reset [#200325]

  - kabi/s390/symvers-default: Update kABI symbols [#202134]

  - patches.suse/bond_alb_deadlock_fix: bonding: fix     deadlock on high loads in bond_alb_monitor(). [#202512]

  - patches.arch/i386-fix-tsc-selection: Fix TSC timer     selection on i386 [#203713]

  - patches.drivers/aic94xx-remove-flash-manfid-reliance:
    Remove reliance on the FLASH MANFID [#203768]

  - patches.fixes/xfs-kern-205110-xfs_dio_locking: Fix ABBA     deadlock between i_mutex and iolock [#205110]

  - patches.suse/bonding-workqueue: Replace system timer     with work queue in monitor functions. Remove rtnl_lock     calls in monitor functions added in original version.
    [#174843] [#205196]

  - add     patches.fixes/fix-incorrect-hugepage-interleaving.patch     fix NUMA interleaving for huge pages [#205268]

  - patches.suse/bondalb-hashtbl.patch: fix hang in bonding     ALB driver. [#206629]     patches.drivers/usb-add-raritan-kvm-usb-dongle-to-the-hi     d_quirk_noget-blacklist.patch: USB: add Raritan KVM USB     Dongle to the HID_QUIRK_NOGET blacklist [#206932]

  - patches.arch/ia64-mca_asm-set_kernel_registers: [IA64]     set ar.fpsr on MCA/INIT kernel entry. [#206967]

  - patches.fixes/md-bitmap-ffz: Use ffz instead of     find_first_set to convert multiplier to shift. [#207679]

  - patches.fixes/md-bitmap-compat-ioctl: Allow     SET_BITMAP_FILE to work on 64bit kernel with 32bit     userspace. [#207688]

  - patches.drivers/mpt-rport-stall: Fix MPT oops during     aborting commands [#207768]

  - patches.drivers/libata-jmicron-update: Fix handling of     JMicron controller [#207939]

  - patches.arch/i386-mmconfig-flush:
    arch/i386/pci/mmconfig.c tlb flush fix [#208414]

  - patches.fixes/scsi-fix-req-page-count: scsi_lib.c:
    properly count the number of pages in scsi_req_map_sg()     [#208782]

  - patches.fixes/fix-processor-placement.diff: sched: Fix     longstanding load balancing bug in the scheduler     [#209460].

  - patches.arch/x86_64-fpu-corruption: Fix FPU corruption     [#209903]

  - patches.drivers/qla1280-bus-reset-handling: performance     slowdown after bus reset on qla12160 HBA [#213717]

  - patches.drivers/qla1280-scb-timeout: qla1280 times out     on long operations such as tape rewind [#214695]

  - patches.fixes/slab-per-cpu-data: Make slab     initialization use per cpu data of correction CPU     [#216316]

  - patches.fixes/ocfs2-network-send-lock.diff: ocfs2:
    introduce sc->sc_send_lock to protect outbound network     messages [#216912]

  - marked module megaraid_sas as supported

  - marked module jsm as supported [#218969]

  - patches.suse/ocfs2-13-fix-quorum-work.diff: ocfs2:
    outstanding scheduled work can oops when quorum is shut     down [#220694]

  - patches.xen/xen-x86_64-agp: add missing header [#222174]     [#224170]

  - patches.fixes/md-rebuild-fix: md: Fix bug where a     rebuild of spares, when interrupted by a rebuild,     doesn't always get properly completed once the system is     back up, leading to filesystem corruption. [#224960].

  - patches.fixes/scsi-sdev-initialisation-block-race: SCSI     midlayer race: scan vs block/unblock deadlocks sdev     [#225770]

A flaw was discovered in dvb ULE decapsulation. A remote attacker could send a specially crafted message and cause a denial of service.
(CVE-2006-4623)

The compat_sys_mount function allowed local users to cause a denial of service when mounting a smbfs filesystem in compatibility mode.
(CVE-2006-7203)

The Omnikey CardMan 4040 driver (cm4040_cs) did not limit the size of buffers passed to read() and write(). A local attacker could exploit this to execute arbitrary code with kernel privileges. (CVE-2007-0005)

Due to an variable handling flaw in the ipv6_getsockopt_sticky() function a local attacker could exploit the getsockopt() calls to read arbitrary kernel memory. This could disclose sensitive data.
(CVE-2007-1000)

Ilja van Sprundel discovered that Bluetooth setsockopt calls could leak kernel memory contents via an uninitialized stack buffer. A local attacker could exploit this flaw to view sensitive kernel information.
(CVE-2007-1353)

A flaw was discovered in the handling of netlink messages. Local attackers could cause infinite recursion leading to a denial of service. (CVE-2007-1861)

The random number generator was hashing a subset of the available entropy, leading to slightly less random numbers. Additionally, systems without an entropy source would be seeded with the same inputs at boot time, leading to a repeatable series of random numbers.
(CVE-2007-2453)

A flaw was discovered in the PPP over Ethernet implementation. Local attackers could manipulate ioctls and cause kernel memory consumption leading to a denial of service. (CVE-2007-2525)

An integer underflow was discovered in the cpuset filesystem. If mounted, local attackers could obtain kernel memory using large file offsets while reading the tasks file. This could disclose sensitive data. (CVE-2007-2875)

Vilmos Nebehaj discovered that the SCTP netfilter code did not correctly validate certain states. A remote attacker could send a specially crafted packet causing a denial of service. (CVE-2007-2876)

Luca Tettamanti discovered a flaw in the VFAT compat ioctls on 64-bit systems. A local attacker could corrupt a kernel_dirent struct and cause a denial of service. (CVE-2007-2878)

A flaw was discovered in the cluster manager. A remote attacker could connect to the DLM port and block further DLM operations.
(CVE-2007-3380)

A flaw was discovered in the usblcd driver. A local attacker could cause large amounts of kernel memory consumption, leading to a denial of service. (CVE-2007-3513).

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.

This kernel update fixes the following security problems :

  - CVE-2006-4145: A bug within the UDF filesystem that     caused machine hangs when truncating files on the     filesystem was fixed. [#186226]

    - A potential crash when receiving IPX packets was       fixed. This problem is thought not to be exploitable.
      [#197809]

  - CVE-2006-4623: A problem in DVB packet handling could be     used to crash the machine when receiving DVB net     packages is active. [#201429]

  - CVE-2006-3741: A struct file leak was fixed in the     perfmon(2) system call on the Itanium architecture.
    [#202269]

  - CVE-2006-4538: A malformed ELF image can be used on the     Itanium architecture to trigger a kernel crash (denial     of service) when a local attacker can supply it to be     started. [#203822]

  - CVE-2006-4997: A problem in the ATM protocol handling     clip_mkip function could be used by remote attackers to     potentially crash the machine. [#205383]

CVE-2006-5757/

  - CVE-2006-6060: A problem in the grow_buffers function     could be used to crash or hang the machine using a     corrupted filesystem. This affects filesystem types     ISO9660 and NTFS. [#205384]

  - CVE-2006-5173: On the i386 architecture the ELFAGS     content was not correctly saved, which could be used by     local attackers to crash other programs using the AC and     NT flag or to escalate privileges by waiting for iopl     privileges to be leaked. [#209386]

  - CVE-2006-5174: On the S/390 architecture     copy_from_user() could be used by local attackers to     read kernel memory. [#209880]

  - CVE-2006-5619: A problem in IPv6 flowlabel handling can     be used by local attackers to hang the machine.
    [#216590]

  - CVE-2006-5648: On the PowerPC architecture a syscall has     been wired without the proper futex implementation that     can be exploited by a local attacker to hang the     machine. [#217295]

  - CVE-2006-5649: On the PowerPC architecture the proper     futex implementation was missing a fix for alignment     check which could be used by a local attacker to crash     the machine. [#217295]

  - CVE-2006-5823: A problem in cramfs could be used to     crash the machine during mounting a crafted cramfs     image. This requires an attacker to supply such a     crafted image and have a user mount it. [#218237]

  - CVE-2006-6053: A problem in the ext3 filesystem could be     used by attackers able to supply a crafted ext3 image to     cause a denial of service or further data corruption if     a user mounts this image. [#220288]

  - CVE-2006-6056: Missing return code checking in the HFS     could be used to crash machine when a user complicit     attacker is able to supply a specially crafted HFS     image. [#221230]

  - CVE-2006-4572: Multiple unspecified vulnerabilities in     netfilter for IPv6 code allow remote attackers to bypass     intended restrictions via fragmentation attack vectors,     aka (1) 'ip6_tables protocol bypass bug' and (2)     'ip6_tables extension header bypass bug'. [#221313]

  - CVE-2006-5751: An integer overflow in the networking     bridge ioctl starting with Kernel 2.6.7 could be used by     local attackers to overflow kernel memory buffers and     potentially escalate privileges [#222656]

Additionaly this kernel catches up to the SLE 10 state of the kernel, with massive additional fixes.

CVE-2006-6060 CVE-2006-6106 CVE-2006-6535 CVE-2007-0958 CVE-2007-1357  CVE-2007-1592

Several local and remote vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code. 

This update also fixes a regression in the smbfs subsystem which was introduced in DSA-1233which caused symlinks to be interpreted as regular files.

The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2005-4811     David Gibson reported an issue in the hugepage code     which could permit a local DoS (system crash) on     appropriately configured systems.

  - CVE-2006-4814     Doug Chapman discovered a potential local DoS (deadlock)     in the mincore function caused by improper lock     handling.

  - CVE-2006-4623     Ang Way Chuang reported a remote DoS (crash) in the dvb     driver which can be triggered by a ULE package with an     SNDU length of 0.

  - CVE-2006-5753     Eric Sandeen provided a fix for a local memory     corruption vulnerability resulting from a     misinterpretation of return values when operating on     inodes which have been marked bad.

  - CVE-2006-5754     Darrick Wong discovered a local DoS (crash)     vulnerability resulting from the incorrect     initialization of 'nr_pages' in aio_setup_ring().

  - CVE-2006-5757     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted iso9660 filesystem.

  - CVE-2006-6053     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted ext3 filesystem.

  - CVE-2006-6056     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted hfs filesystem on systems     with SELinux hooks enabled (Debian does not enable     SELinux by default).

  - CVE-2006-6060     LMH reported a potential local DoS (infinite loop) which     could be exploited by a malicious user with the     privileges to mount and read a corrupted NTFS     filesystem.

  - CVE-2006-6106     Marcel Holtman discovered multiple buffer overflows in     the Bluetooth subsystem which can be used to trigger a     remote DoS (crash) and potentially execute arbitrary     code.

  - CVE-2006-6535     Kostantin Khorenko discovered an invalid error path in     dev_queue_xmit() which could be exploited by a local     user to cause data corruption.

  - CVE-2007-0958     Santosh Eraniose reported a vulnerability that allows     local users to read otherwise unreadable files by     triggering a core dump while using PT_INTERP. This is     related to CVE-2004-1073.

  - CVE-2007-1357     Jean Delvare reported a vulnerability in the appletalk     subsystem. Systems with the appletalk module loaded can     be triggered to crash by other systems on the local     network via a malformed frame.

  - CVE-2007-1592     Masayuki Nakagawa discovered that flow labels were     inadvertently being shared between listening sockets and     child sockets. This defect can be exploited by local     users to cause a DoS (Oops).

A number of vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

Stephane Eranian discovered an issue with permon2.0 where, under certain circumstances, the perfmonctl() system call may not correctly manage the file descriptor reference count, resulting in the system possibly running out of file structure (CVE-2006-3741).

Prior to and including 2.6.17, the Universal Disk Format (UDF) filesystem driver allowed local users to cause a DoS (hang and crash) via certain operations involving truncated files (CVE-2006-4145).

Various versions of the Linux kernel allowed local users to cause a DoS (crash) via an SCTP socket with a certain SO_LINGER value, which is possibly related to the patch used to correct CVE-2006-3745 (CVE-2006-4535).

The Unidirectional Lightweight Encapsulation (ULE) decapsulation component in the dvb driver allows remote attackers to cause a DoS (crash) via an SNDU length of 0 in a ULE packet (CVE-2006-4623).

The provided packages are patched to fix these vulnerabilities. All users are encouraged to upgrade to these updated kernels immediately and reboot to effect the fixes.

In addition to these security fixes, other fixes have been included such as :

  - added support for new devices: o NetXtreme BCM5715     gigabit ethernet o NetXtreme II BCM5708 gigabit ethernet
    - enabled the CISS driver for Xen kernels - updated ich8     support in ata_piix - enabled support for 1078 type     controller in megaraid_sas - multiple fixes for RSBAC     support

To update your kernel, please follow the directions located at :

http://www.mandriva.com/en/security/kernelupdate

Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 4 kernel are now available.

This security advisory has been rated as having important security impact by the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

These new kernel packages contain fixes for the security issues described below :

* a flaw in the SCTP support that allowed a local user to cause a denial of service (crash) with a specific SO_LINGER value.
(CVE-2006-4535, Important)

* a flaw in the hugepage table support that allowed a local user to cause a denial of service (crash). (CVE-2005-4811, Important)

* a flaw in the mprotect system call that allowed setting write permission for a read-only attachment of shared memory.
(CVE-2006-2071, Moderate)

* a flaw in HID0[31] (en_attn) register handling on PowerPC 970 systems that allowed a local user to cause a denial of service.
(crash) (CVE-2006-4093, Moderate)

* a flaw in the perfmon support of Itanium systems that allowed a local user to cause a denial of service by consuming all file descriptors. (CVE-2006-3741, Moderate)

* a flaw in the ATM subsystem. On systems with installed ATM hardware and configured ATM support, a remote user could cause a denial of service (panic) by accessing socket buffers memory after freeing them.
(CVE-2006-4997, Moderate)

* a flaw in the DVB subsystem. On systems with installed DVB hardware and configured DVB support, a remote user could cause a denial of service (panic) by sending a ULE SNDU packet with length of 0.
(CVE-2006-4623, Low)

* an information leak in the network subsystem that possibly allowed a local user to read sensitive data from kernel memory. (CVE-2006-0039, Low)

In addition, two bugfixes for the IPW-2200 wireless driver were included. The first one ensures that wireless management applications correctly identify IPW-2200 controlled devices, while the second fix ensures that DHCP requests using the IPW-2200 operate correctly.

Red Hat would like to thank Olof Johansson, Stephane Eranian and Solar Designer for reporting issues fixed in this erratum.

All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2006-0689.

ID	Name	Product	Family	Severity
67401	Oracle Linux 4 : kernel (ELSA-2006-0617 / ELSA-2006-0689)	Nessus	Oracle Linux Local Security Checks	high
59162	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 2393)	Nessus	SuSE Local Security Checks	high
29490	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 2399)	Nessus	SuSE Local Security Checks	high
28090	Ubuntu 6.06 LTS : linux-source-2.6.15 vulnerability (USN-489-1)	Nessus	Ubuntu Local Security Checks	high
27291	openSUSE 10 Security Update : kernel (kernel-2397)	Nessus	SuSE Local Security Checks	high
25529	Debian DSA-1304-1 : kernel-source-2.6.8 - several vulnerabilities	Nessus	Debian Local Security Checks	high
24567	Mandrake Linux Security Advisory : kernel (MDKSA-2006:182)	Nessus	Mandriva Local Security Checks	high
22523	RHEL 4 : kernel (RHSA-2006:0689)	Nessus	Red Hat Local Security Checks	high
22513	CentOS 4 : kernel (CESA-2006:0689)	Nessus	CentOS Local Security Checks	high
801422	CentOS RHSA-2006-0689 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2006-4623

medium

Tenable Plugins

high

high

high

high

high

high

high

high

high

high