Updated kernel packages that fix several security issues and bugs 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 connection tracking support for SCTP that allowed a remote user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-2876, Important)

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (crash). (CVE-2006-7203, Important)

* a flaw in the IPv4 forwarding base that allowed a local user to cause an out-of-bounds access. (CVE-2007-2172, Important)

* a flaw in the PPP over Ethernet implementation that allowed a local user to cause a denial of service (memory consumption) by creating a socket using connect and then releasing it before the PPPIOCGCHAN ioctl has been called. (CVE-2007-2525, Important)

* a flaw in the fput ioctl handling of 32-bit applications running on 64-bit platforms that allowed a local user to cause a denial of service (panic). (CVE-2007-0773, Important)

* a flaw in the NFS locking daemon that allowed a local user to cause denial of service (deadlock). (CVE-2006-5158, Moderate)

* a flaw in the sysfs_readdir function that allowed a local user to cause a denial of service by dereferencing a NULL pointer.
(CVE-2007-3104, Moderate)

* a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak. (CVE-2007-1353, Low)

In addition, the following bugs were addressed :

* the NFS could recurse on the same spinlock. Also, NFS, under certain conditions, did not completely clean up Posix locks on a file close, leading to mount failures.

* the 32bit compatibility didn't return to userspace correct values for the rt_sigtimedwait system call.

* the count for unused inodes could be incorrect at times, resulting in dirty data not being written to disk in a timely manner.

* the cciss driver had an incorrect disk size calculation (off-by-one error) which prevented disk dumps.

Red Hat would like to thank Ilja van Sprundel and the OpenVZ Linux kernel team 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.

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

  - a flaw in the connection tracking support for SCTP that     allowed a remote user to cause a denial of service by     dereferencing a NULL pointer. (CVE-2007-2876, Important)

  - a flaw in the mount handling routine for 64-bit systems     that allowed a local user to cause denial of service     (crash). (CVE-2006-7203, Important)

  - a flaw in the IPv4 forwarding base that allowed a local     user to cause an out-of-bounds access. (CVE-2007-2172,     Important)

  - a flaw in the PPP over Ethernet implementation that     allowed a local user to cause a denial of service     (memory consumption) by creating a socket using connect     and then releasing it before the PPPIOCGCHAN ioctl has     been called. (CVE-2007-2525, Important)

  - a flaw in the fput ioctl handling of 32-bit applications     running on 64-bit platforms that allowed a local user to     cause a denial of service (panic). (CVE-2007-0773,     Important)

  - a flaw in the NFS locking daemon that allowed a local     user to cause denial of service (deadlock).
    (CVE-2006-5158, Moderate)

  - a flaw in the sysfs_readdir function that allowed a     local user to cause a denial of service by dereferencing     a NULL pointer. (CVE-2007-3104, Moderate)

  - a flaw in the core-dump handling that allowed a local     user to create core dumps from unreadable binaries via     PT_INTERP. (CVE-2007-0958, Low)

  - a flaw in the Bluetooth subsystem that allowed a local     user to trigger an information leak. (CVE-2007-1353,     Low)

In addition, the following bugs were addressed :

  - the NFS could recurse on the same spinlock. Also, NFS,     under certain conditions, did not completely clean up     Posix locks on a file close, leading to mount failures.

  - the 32bit compatibility didn't return to userspace     correct values for the rt_sigtimedwait system call.

  - the count for unused inodes could be incorrect at times,     resulting in dirty data not being written to disk in a     timely manner.

  - the cciss driver had an incorrect disk size calculation     (off-by-one error) which prevented disk dumps.

NOTE1: From The Upstream Vendors release notes 'During PCI probing, Red Hat Enterprise Linux 4 Update 5 attempts to use information obtained from MCFG (memory-mapped PCI configuration space). On AMD-systems, this type of access does not work on some buses, as the kernel cannot parse the MCFG table.

To work around this, add the parameter pci=conf1 or pci=nommconf on the kernel boot line in /etc/grub.conf. For example :

title Red Hat Enterprise Linux AS (2.6.9-42.0.2.EL) root (hd0,0) kernel /vmlinuz-2.6.9-42.0.2.EL ro root=/dev/VolGroup00/LogVol00 rhgb quiet pci=conf1 initrd /initrd-2.6.9-42.0.2.EL.img

Doing this instructs the kernel to use PCI Conf1 access instead of MCFG-based access.'

NOTE2: From The Upstream Vendors Knowledge Base 'Why did the ordering of my NIC devices change in Red Hat Enterprise Linux 4.5?

The 2.6.9-55 version of the Red Hat Enterprise Linux 4 kernel (Update 5) reverts to the 2.4 ordering of network interface cards (NICs) on certain systems. Note that if the 'HWADDR=MAC ADDRESS' line is present in the /etc/sysconfig/network-scripts/ifcfg-ethX files, the NIC ordering will not change.

To restore the original 2.6 ordering, which is different from the 2.4 ordering, boot with the option pci=nobfsort '

From Red Hat Security Advisory 2007:0488 :

Updated kernel packages that fix several security issues and bugs 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 connection tracking support for SCTP that allowed a remote user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-2876, Important)

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (crash). (CVE-2006-7203, Important)

* a flaw in the IPv4 forwarding base that allowed a local user to cause an out-of-bounds access. (CVE-2007-2172, Important)

* a flaw in the PPP over Ethernet implementation that allowed a local user to cause a denial of service (memory consumption) by creating a socket using connect and then releasing it before the PPPIOCGCHAN ioctl has been called. (CVE-2007-2525, Important)

* a flaw in the fput ioctl handling of 32-bit applications running on 64-bit platforms that allowed a local user to cause a denial of service (panic). (CVE-2007-0773, Important)

* a flaw in the NFS locking daemon that allowed a local user to cause denial of service (deadlock). (CVE-2006-5158, Moderate)

* a flaw in the sysfs_readdir function that allowed a local user to cause a denial of service by dereferencing a NULL pointer.
(CVE-2007-3104, Moderate)

* a flaw in the core-dump handling that allowed a local user to create core dumps from unreadable binaries via PT_INTERP. (CVE-2007-0958, Low)

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak. (CVE-2007-1353, Low)

In addition, the following bugs were addressed :

* the NFS could recurse on the same spinlock. Also, NFS, under certain conditions, did not completely clean up Posix locks on a file close, leading to mount failures.

* the 32bit compatibility didn't return to userspace correct values for the rt_sigtimedwait system call.

* the count for unused inodes could be incorrect at times, resulting in dirty data not being written to disk in a timely manner.

* the cciss driver had an incorrect disk size calculation (off-by-one error) which prevented disk dumps.

Red Hat would like to thank Ilja van Sprundel and the OpenVZ Linux kernel team 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.

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

The Linux kernel did not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allowed local users to cause a denial of service (process crash) (CVE-2006-5755).

The compat_sys_mount function in fs/compat.c allowed local users to cause a denial of service (NULL pointer dereference and oops) by mounting a smbfs file system in compatibility mode (CVE-2006-7203).

The nfnetlink_log function in netfilter allowed an attacker to cause a denial of service (crash) via unspecified vectors which would trigger a NULL pointer dereference (CVE-2007-1496).

The nf_conntrack function in netfilter did not set nfctinfo during reassembly of fragmented packets, which left the default value as IP_CT_ESTABLISHED and could allow remote attackers to bypass certain rulesets using IPv6 fragments (CVE-2007-1497).

The netlink functionality did not properly handle NETLINK_FIB_LOOKUP replies, which allowed a remote attacker to cause a denial of service (resource consumption) via unspecified vectors, probably related to infinite recursion (CVE-2007-1861).

A typo in the Linux kernel caused RTA_MAX to be used as an array size instead of RTN_MAX, which lead to an out of bounds access by certain functions (CVE-2007-2172).

The IPv6 protocol allowed remote attackers to cause a denial of service via crafted IPv6 type 0 route headers that create network amplification between two routers (CVE-2007-2242).

The random number feature did not properly seed pools when there was no entropy, or used an incorrect cast when extracting entropy, which could cause the random number generator to provide the same values after reboots on systems without an entropy source (CVE-2007-2453).

A memory leak in the PPPoE socket implementation allowed local users to cause a denial of service (memory consumption) by creating a socket using connect, and releasing it before the PPPIOCGCHAN ioctl is initialized (CVE-2007-2525).

An integer underflow in the cpuset_tasks_read function, when the cpuset filesystem is mounted, allowed local users to obtain kernel memory contents by using a large offset when reading the /dev/cpuset/tasks file (CVE-2007-2875).

The sctp_new function in netfilter allowed remote attackers to cause a denial of service by causing certain invalid states that triggered a NULL pointer dereference (CVE-2007-2876).

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

  - Fix crash on netfilter when nfnetlink_log is used on     certain hooks on packets forwarded to or from a bridge

  - Fixed busy sleep on IPVS which caused high load averages

    - Fixed possible race condition on ext[34]_link

    - Fixed missing braces in condition block that led to       wrong behaviour in NFS

  - Fixed XFS lock deallocation that resulted in oops when     unmounting

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

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

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2007-0376 advisory.

    [2.6.18-8.1.6.0.1.el5]
     -Fix bonding primary=ethX so it picks correct network (Bert Barbe) [IT      101532] [ORA 5136660]
     -Add entropy module option to e1000 (John Sobecki) [ORA 6045759]
     -Add entropy module option to bnx2 (John Sobecki) [ORA 6045759]

     [2.6.18.8-1.6.el5]
     - [bluetooth] close information leaks in setsockopt (Marcel Holtmann )      [241862]{CVE-2007-1353}
     - [net] fix memory leak in PPPoE (Neil Horman ) [241863] {CVE-2007-2525}
     - [random] fix seeding of dev/random (Aristeu Rozanski ) [241888]

     [2.6.18-8.1.5.el5]
     - [fs] prevent oops in compat_sys_mount (Jeff Layton ) [240456]      {CVE-2006-7203}
     - [e1000] fix watchdog timeout panics (Andy Gospodarek ) [238048]
     - [ext3] return ENOENT from ext3_link when racing with unlink (Eric      Sandeen ) [239787]

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.

a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important).

a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important).

a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low).

a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low).

In addition to the security issues described above, fixes for the following have been included :

  - a race condition between ext3_link/unlink that could     create an orphan inode list corruption.

  - a bug in the e1000 driver that could lead to a watchdog     timeout panic.

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.

Updated kernel packages that fix security issues and bugs in the Red Hat Enterprise Linux 5 kernel 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 following security issues :

* a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important).

* a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important).

* a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low).

* a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low).

In addition to the security issues described above, fixes for the following have been included :

* a race condition between ext3_link/unlink that could create an orphan inode list corruption.

* a bug in the e1000 driver that could lead to a watchdog timeout panic.

Red Hat Enterprise Linux 5 users are advised to upgrade to these packages, which contain backported patches to correct these issues.

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. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2006-5823     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted cramfs filesystem.

  - CVE-2006-6054     LMH reported a potential local DoS which could be     exploited by a malicious user with the privileges to     mount and read a corrupted ext2 filesystem.

  - CVE-2006-6058     LMH reported an issue in the minix filesystem that     allows local users with mount privileges to create a DoS     (printk flood) by mounting a specially crafted corrupt     filesystem.

  - CVE-2006-7203     OpenVZ Linux kernel team reported an issue in the smbfs     filesystem which can be exploited by local users to     cause a DoS (oops) during mount.

  - CVE-2007-1353     Ilja van Sprundel discovered that kernel memory could be     leaked via the Bluetooth setsockopt call due to an     uninitialized stack buffer. This could be used by local     attackers to read the contents of sensitive kernel     memory.

  - CVE-2007-2172     Thomas Graf reported a typo in the DECnet protocol     handler that could be used by a local attacker to     overrun an array via crafted packets, potentially     resulting in a Denial of Service (system crash). A     similar issue exists in the IPV4 protocol handler and     will be fixed in a subsequent update.

  - CVE-2007-2525     Florian Zumbiehl discovered a memory leak in the PPPOE     subsystem caused by releasing a socket before     PPPIOCGCHAN is called upon it. This could be used by a     local user to DoS a system by consuming all available     memory.

  - CVE-2007-3105     The PaX Team discovered a potential buffer overflow in     the random number generator which may permit local users     to cause a denial of service or gain additional     privileges. This issue is not believed to effect default     Debian installations where only root has sufficient     privileges to exploit it.

  - CVE-2007-3739     Adam Litke reported a potential local denial of service     (oops) on powerpc platforms resulting from unchecked VMA     expansion into address space reserved for hugetlb pages.

  - CVE-2007-3740     Steve French reported that CIFS filesystems with     CAP_UNIX enabled were not honoring a process' umask     which may lead to unintentionally relaxed permissions.

  - CVE-2007-3848     Wojciech Purczynski discovered that pdeath_signal was     not being reset properly under certain conditions which     may allow local users to gain privileges by sending     arbitrary signals to suid binaries.

  - CVE-2007-4133     Hugh Dickins discovered a potential local DoS (panic) in     hugetlbfs. A misconversion of hugetlb_vmtruncate_list to     prio_tree may allow local users to trigger a BUG_ON()     call in exit_mmap.

  - CVE-2007-4308     Alan Cox reported an issue in the aacraid driver that     allows unprivileged local users to make ioctl calls     which should be restricted to admin privileges.

  - CVE-2007-4573     Wojciech Purczynski discovered a vulnerability that can     be exploited by a local user to obtain superuser     privileges on x86_64 systems. This resulted from     improper clearing of the high bits of registers during     ia32 system call emulation. This vulnerability is     relevant to the Debian amd64 port as well as users of     the i386 port who run the amd64 linux-image flavour.

  - CVE-2007-5093     Alex Smith discovered an issue with the pwc driver for     certain webcam devices. If the device is removed while a     userspace application has it open, the driver will wait     for userspace to close the device, resulting in a     blocked USB subsystem. This issue is of low security     impact as it requires the attacker to either have     physical access to the system or to convince a user with     local access to remove the device on their behalf.

  - CVE-2007-6063     Venustech AD-LAB discovered a a buffer overflow in the     isdn ioctl handling, exploitable by a local user.

  - CVE-2007-6151     ADLAB discovered a possible memory overrun in the ISDN     subsystem that may permit a local user to overwrite     kernel memory by issuing ioctls with unterminated data.

  - CVE-2007-6206     Blake Frantz discovered that when a core file owned by a     non-root user exists, and a root-owned process dumps     core over it, the core file retains its original     ownership. This could be used by a local user to gain     access to sensitive information.

  - CVE-2007-6694     Cyrill Gorcunov reported a NULL pointer dereference in     code specific to the CHRP PowerPC platforms. Local users     could exploit this issue to achieve a Denial of Service     (DoS).

  - CVE-2008-0007     Nick Piggin of SuSE discovered a number of issues in     subsystems which register a fault handler for memory     mapped areas. This issue can be exploited by local users     to achieve a Denial of Service (DoS) and possibly     execute arbitrary code.

The following matrix lists additional packages that were rebuilt for compatibility with or to take advantage of this update :

                             Debian 3.1 (sarge)            kernel-image-2.6.8-alpha    2.6.8-17sarge1                kernel-image-2.6.8-amd64    2.6.8-17sarge1                kernel-image-2.6.8-hppa     2.6.8-7sarge1                 kernel-image-2.6.8-i386     2.6.8-17sarge1                kernel-image-2.6.8-ia64     2.6.8-15sarge1                kernel-image-2.6.8-m68k     2.6.8-5sarge1                 kernel-image-2.6.8-s390     2.6.8-6sarge1                 kernel-image-2.6.8-sparc    2.6.8-16sarge1                kernel-patch-powerpc-2.6.8  2.6.8-13sarge1                fai-kernels                 1.9.1sarge8

This kernel update fixes the following security problems :

  - CVE-2007-1861: The nl_fib_lookup function in     net/ipv4/fib_frontend.c allows attackers to cause a     denial of service (kernel panic) via NETLINK_FIB_LOOKUP     replies, which trigger infinite recursion and a stack     overflow.

  - CVE-2007-1496: nfnetlink_log in netfilter allows     attackers to cause a denial of service (crash) via     unspecified vectors involving the (1) nfulnl_recv_config     function, (2) using 'multiple packets per netlink     message', and (3) bridged packets, which trigger a NULL     pointer dereference.

  - CVE-2007-1497: nf_conntrack in netfilter does not set     nfctinfo during reassembly of fragmented packets, which     leaves the default value as IP_CT_ESTABLISHED and might     allow remote attackers to bypass certain rulesets using     IPv6 fragments.

    Please note that the connection tracking option for IPv6     is not enabled in any currently shipping SUSE Linux     kernel, so it does not affect SUSE Linux default     kernels.

  - CVE-2007-2242: The IPv6 protocol allows remote attackers     to cause a denial of service via crafted IPv6 type 0     route headers (IPV6_RTHDR_TYPE_0) that create network     amplification between two routers.

    The behaviour has been disabled by default, and the     patch introduces a new sysctl with which the     administrator can reenable it again.

  - CVE-2006-7203: The compat_sys_mount function in     fs/compat.c allows local users to cause a denial of     service (NULL pointer dereference and oops) by mounting     a smbfs file system in compatibility mode ('mount -t     smbfs').

  - CVE-2007-2453: Seeding of the kernel random generator on     boot did not work correctly due to a programming mistake     and so the kernel might have more predictable random     numbers than assured.

  - CVE-2007-2876: A NULL pointer dereference in SCTP     connection tracking could be caused by a remote attacker     by sending specially crafted packets. Note that this     requires SCTP set-up and active to be exploitable.

and the following non security bugs :

    - patches.fixes/cpufreq_fix_limited_on_battery.patch:
      Fix limited freq when booted on battery. [#231107]

    - patches.fixes/usb-keyspan-regression-fix.patch: USB:
      keyspan regression fix [#240919]

  - -     patches.fixes/hpt366-dont-check-enablebits-for-hpt36x.pa     tch: hpt366: don't check enablebits for HPT36x [#278696]

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 a 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)

A flaw was discovered in the IPv6 stack's handling of type 0 route headers. By sending a specially crafted IPv6 packet, a remote attacker could cause a denial of service between two IPv6 hosts.
(CVE-2007-2242)

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).

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-2007-0488.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2007-0376.

ID	Name	Product	Family	Published	Updated	Severity
25575	CentOS 4 : kernel (CESA-2007:0488)	Nessus	CentOS Local Security Checks	6/27/2007	1/4/2021	medium
60215	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	medium
67520	Oracle Linux 4 : kernel (ELSA-2007-0488)	Nessus	Oracle Linux Local Security Checks	7/12/2013	8/24/2021	medium
25605	RHEL 4 : kernel (RHSA-2007:0488)	Nessus	Red Hat Local Security Checks	6/27/2007	1/14/2021	medium
25968	Mandrake Linux Security Advisory : kernel (MDKSA-2007:171)	Nessus	Mandriva Local Security Checks	9/3/2007	1/6/2021	high
67502	Oracle Linux 5 : Important: / kernel (ELSA-2007-0376)	Nessus	Oracle Linux Local Security Checks	7/12/2013	11/1/2024	medium
60209	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	medium
28090	Ubuntu 6.06 LTS : linux-source-2.6.15 vulnerability (USN-489-1)	Nessus	Ubuntu Local Security Checks	11/10/2007	1/19/2021	high
43642	CentOS 5 : kernel (CESA-2007:0376)	Nessus	CentOS Local Security Checks	1/6/2010	1/4/2021	medium
25538	RHEL 5 : kernel (RHSA-2007:0376)	Nessus	Red Hat Local Security Checks	6/18/2007	1/14/2021	medium
31148	Debian DSA-1504-1 : kernel-source-2.6.8 - several vulnerabilities	Nessus	Debian Local Security Checks	2/25/2008	1/4/2021	high
27295	openSUSE 10 Security Update : kernel (kernel-3760)	Nessus	SuSE Local Security Checks	10/17/2007	1/14/2021	high
28087	Ubuntu 6.10 : linux-source-2.6.17 vulnerabilities (USN-486-1)	Nessus	Ubuntu Local Security Checks	11/10/2007	1/19/2021	high
801431	CentOS RHSA-2007-0488 Security Check	Log Correlation Engine	Generic			high
801429	CentOS RHSA-2007-0376 Security Check	Log Correlation Engine	Generic			high

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