VFS in the Linux kernel before 2.6.22.16, and 2.6.23.x before 2.6.23.14, performs tests of access mode by using the flag variable instead of the acc_mode variable, which might allow local users to bypass intended permissions and remove directories.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - fix utrace dead_engine ops race

  - fix ptrace_attach leak

  - CVE-2007-5093: kernel PWC driver DoS

  - CVE-2007-6282: IPSec ESP kernel panics

  - CVE-2007-6712: kernel: infinite loop in highres timers     (kernel hang)

  - CVE-2008-1615: kernel: ptrace: Unprivileged crash on     x86_64 %cs corruption

  - CVE-2008-1294: kernel: setrlimit(RLIMIT_CPUINFO) with     zero value doesn't inherit properly across children

  - CVE-2008-2136: kernel: sit memory leak

  - CVE-2008-2812: kernel: NULL ptr dereference in multiple     network drivers due to missing checks in tty code

  - restore     linux-2.6-x86-clear-df-flag-for-signal-handlers.patch

  - restore linux-2.6-utrace.patch /     linux-2.6-xen-utrace.patch

  - Kernel security erratas for OVM 2.1.2 from bz#5932 :

  - CVE-2007-6063: isdn: fix possible isdn_net buffer     overflows

  - CVE-2007-3104 Null pointer to an inode in a dentry can     cause an oops in sysfs_readdir

  - CVE-2008-0598: write system call vulnerability

  - CVE-2008-1375: kernel: race condition in dnotify

  - CVE-2008-0001: kernel: filesystem corruption by     unprivileged user via directory truncation

  - CVE-2008-2358: dccp: sanity check feature length

  - CVE-2007-5938: NULL dereference in iwl driver

  - RHSA-2008:0508: kernel: [x86_64] The string instruction     version didn't zero the output on exception.

  - kernel: clear df flag for signal handlers

  - fs: missing dput in do_lookup error leaks dentries

  - sysfs: fix condition check in sysfs_drop_dentry

  - sysfs: fix race condition around sd->s_dentry

  - ieee80211: off-by-two integer underflow

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0089 advisory.

    [2.6.18-53.1.6.0.1.el5]
     - [NET] Add entropy support to e1000 and bnx2 (John Sobecki) [ORA 6045759]
     - [NET] Fix msi issue with kexec/kdump (Michael Chan) [ORA 6219364]
     - [MM] Fix alloc_pages_node() static `nid\' race made kernel crash (Joe      Jin) [ORA 6187457]
     - [splice] Fix bad unlock_page() in error case  (Jens Axboe) [ORA 6263574]
     - [dio] fix error-path crashes (Linux Torvalds) [ORA 6242289]
     - [MM] Fix leak in hugepages, regression for shared pagetables patch      (Adam Litke) [ORABUG 6732368]

     [2.6.18-53.1.6.el5]
     - [fs] corruption by unprivileged user in directories (Vitaly Mayatskikh      ) [428796] {CVE-2008-0001}

     [2.6.18-53.1.5.el5]
     - [ia64] ptrace: access to user register backing (Roland McGrath ) [259801]
     - [fs] cifs: buffer overflow due to corrupt response (Jeff Layton ) [372991]
     - [net] s2io: correct VLAN frame reception (Andy Gospodarek ) [426289]
     - [net] s2io: allow VLAN creation on interfaces (Andy Gospodarek ) [426289]
     - [misc] tux: get rid of O_ATOMICLOOKUP (Michal Schmidt ) [426494]
     - [x86_64] fix race conditions in setup_APIC_timer (Geoff Gustafson )      [424181]
     - [fs] core dump file ownership (Don Howard ) [396991]
     - [nfs] let rpciod finish sillyrename then umount (Steve Dickson ) [414041]
     - [nfs] fix a race in silly rename (Steve Dickson ) [414041]
     - [nfs] clean up the silly rename code (Steve Dickson ) [414041]
     - [nfs] infrastructure changes for silly renames (Steve Dickson ) [414041]
     - [nfs] introduce nfs_removeargs and nfs_removeres (Steve Dickson ) [414041]
     - [ia64] remove stack hard limit (Aron Griffis ) [412091]
     - [fs] sysfs: fix race condition around sd->s_dentry (Eric Sandeen )      [245777] {CVE-2007-3104}
     - [fs] sysfs: fix condition check in sysfs_drop_dentry() (Eric Sandeen )      [245777] {CVE-2007-3104}
     - [fs] sysfs: store inode nrs in s_ino (Eric Sandeen ) [245777]      {CVE-2007-3104}
     - [xen] ia64: vulnerability of copy_to_user in PAL emu (Jarod Wilson )      [425938]

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.

From Red Hat Security Advisory 2008:0055 :

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

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

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

These updated kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). A local unprivileged user could truncate directories to which they had write permission;
this could render the contents of the directory inaccessible.
(CVE-2008-0001, Important)

A flaw was found in the implementation of ptrace. A local unprivileged user could trigger this flaw and possibly cause a denial of service (system hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA method for accessing memory on Itanium architectures. A local unprivileged user could trigger this flaw and cause a denial of service (system panic).
(CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo function when using the PowerPC architecture. This may have allowed a local unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A local unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug :

* when moving volumes that contain multiple segments, and a mirror segment is not the first in the mapping table, running the 'pvmove /dev/[device] /dev/[device]' command caused a kernel panic. A 'kernel:
Unable to handle kernel paging request at virtual address [address]' error was logged by syslog.

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

These updated kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). A local unprivileged user could truncate directories to which they had write permission;
this could render the contents of the directory inaccessible.
(CVE-2008-0001, Important)

A flaw was found in the implementation of ptrace. A local unprivileged user could trigger this flaw and possibly cause a denial of service (system hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA method for accessing memory on Itanium architectures. A local unprivileged user could trigger this flaw and cause a denial of service (system panic).
(CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo function when using the PowerPC architecture. This may have allowed a local unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A local unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug :

  - when moving volumes that contain multiple segments, and     a mirror segment is not the first in the mapping table,     running the 'pvmove /dev/[device] /dev/[device]' command     caused a kernel panic. A 'kernel: Unable to handle     kernel paging request at virtual address [address]'     error was logged by syslog.

These new kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). An unprivileged local user could truncate directories to which they had write permission; this could render the contents of the directory inaccessible. (CVE-2008-0001, Important)

A flaw was found in the Xen PAL emulation on Intel 64 platforms. A guest Hardware-assisted virtual machine (HVM) could read the arbitrary physical memory of the host system, which could make information available to unauthorized users. (CVE-2007-6416, Important)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file, potentially containing sensitive information. (CVE-2007-6206, Moderate)

A buffer overflow flaw was found in the CIFS virtual file system. A remote,authenticated user could issue a request that could lead to a denial of service. (CVE-2007-5904, Moderate)

A flaw was found in the 'sysfs_readdir' function. A local user could create a race condition which would cause a denial of service (kernel oops). (CVE-2007-3104, Moderate)

As well, these updated packages fix the following bugs :

  - running the 'strace -f' command caused strace to hang,     without displaying information about child processes.

  - unmounting an unresponsive, interruptable NFS mount, for     example, one mounted with the 'intr' option, may have     caused a system crash.

  - a bug in the s2io.ko driver prevented VLAN devices from     being added. Attempting to add a device to a VLAN, for     example, running the 'vconfig add [device-name]     [vlan-id]' command caused vconfig to fail.

  - tux used an incorrect open flag bit. This caused     problems when building packages in a chroot environment,     such as mock, which is used by the koji build system.

This kernel update fixes the following security problems :

  - Insufficient range checks in certain fault handlers     could be used by local attackers to potentially read or     write kernel memory. (CVE-2008-0007)

  - Incorrect access mode checks could be used by local     attackers to corrupt directory contents and so cause     denial of service attacks or potentially execute code.
    (CVE-2008-0001)

  - Integer overflow in the hrtimer_start function in     kernel/hrtimer.c in the Linux kernel before 2.6.23.10     allows local users to execute arbitrary code or cause a     denial of service (panic) via a large relative timeout     value. NOTE: some of these details are obtained from     third-party information. (CVE-2007-5966)

  - The shmem_getpage function (mm/shmem.c) in Linux kernel     2.6.11 through 2.6.23 does not properly clear allocated     memory in some rare circumstances, which might allow     local users to read sensitive kernel data or cause a     denial of service (crash). (CVE-2007-6417)

Additionally the following bugfixes have been included for all platforms :

  - patches.suse/bootsplash: Bootsplash for current kernel     (none). patch the patch for Bug 345980.

  - patches.fixes/megaraid-fixup-driver-version: Megaraid     driver version out of sync (299740).

  - OCFS2: Updated to version 1.2.8

  - patches.fixes/ocfs2-1.2-svn-r3070.diff: [PATCH] ocfs2:
    Remove overzealous BUG_ON().

  - patches.fixes/ocfs2-1.2-svn-r3072.diff: [PATCH] ocfs2:
    fix rename vs unlink race.

  - patches.fixes/ocfs2-1.2-svn-r3074.diff: [PATCH] ocfs2:
    Remove expensive local alloc bitmap scan code.

  - patches.fixes/ocfs2-1.2-svn-r3057.diff: [PATCH] ocfs2:
    Check for cluster locking in ocfs2_readpage.

  - patches.fixes/ocfs2-1.2-svn-r2975.diff: ocfs2_dlm: make     functions static.

  - patches.fixes/ocfs2-1.2-svn-r2976.diff: [PATCH]     ocfs2_dlm: make tot_backoff more descriptive.

  - patches.fixes/ocfs2-1.2-svn-r3002.diff: [PATCH] ocfs2:
    Remove the printing of harmless ERRORS like ECONNRESET,     EPIPE..

  - patches.fixes/ocfs2-1.2-svn-r3004.diff: [PATCH]     ocfs2_dlm: Call cond_resched_lock() once per hash bucket     scan.

  - patches.fixes/ocfs2-1.2-svn-r3006.diff: [PATCH]     ocfs2_dlm: Silence compiler warnings.

  - patches.fixes/ocfs2-1.2-svn-r3062.diff: [PATCH]     ocfs2_dlm: Fix double increment of migrated lockres'     owner count.

  - patches.fixes/hugetlb-get_user_pages-corruption.patch:
    hugetlb: follow_hugetlb_page() for write access     (345239).

  - enable patches.fixes/reiserfs-fault-in-pages.patch     (333412)

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids. Get the module to build...

  -     patches.drivers/usb-add-usb_device_and_interface_info.pa     tch: USB: add USB_DEVICE_AND_INTERFACE_INFO(). This is     needed to get the HUAWEI devices to work properly, and     to get patches.drivers/usb-update-evdo-driver-ids.patch     to build without errors.

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids on request from our IT department     (345438).

  - patches.suse/kdump-dump_after_notifier.patch: Add     dump_after_notifier sysctl (265764).

  - patches.drivers/libata-sata_nv-disable-ADMA: sata_nv:
    disable ADMA by default (346508).

  - patches.fixes/cpufreq-fix-ondemand-deadlock.patch:
    Cpufreq fix ondemand deadlock (337439).

  -     patches.fixes/eliminate-cpufreq_userspace-scaling_setspe     ed-deadlock.patch: Eliminate cpufreq_userspace     scaling_setspeed deadlock (337439).

  - patches.xen/15181-dma-tracking.patch: Fix issue     preventing Xen KMPs from building.

  - patches.drivers/r8169-perform-a-PHY-reset-before.patch:
    r8169: perform a PHY reset before any other operation at     boot time (345658).

  - patches.drivers/r8169-more-alignment-for-the-0x8168:
    refresh.

  - patches.fixes/lockd-grant-shutdown: Stop GRANT callback     from crashing if NFS server has been stopped. (292478).
    There was a problem with this patch which would cause     apparently random crashes when lockd was in use. The     offending change has been removed.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/cifs-incomplete-recv.patch: fix incorrect     session reconnects (279783).

  - patches.fixes/megaraid_mbox-dell-cerc-support: Fix so     that it applies properly. I extended the context to 6     lines to help patch find where to apply the patch     (267134).

  - patches.fixes/md-idle-test: md: improve the     is_mddev_idle test fix (326591).

Fixes for the AMD64/Intel EM64T (x86_64) platform :

  - patches.arch/x86_64-mce-loop: x86_64: fix misplaced     `continue' in mce.c (344239).

Updated kernel packages that fix several security issues and several 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 kernel packages contain the Linux kernel, the core of any Linux operating system.

These new kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). An unprivileged local user could truncate directories to which they had write permission; this could render the contents of the directory inaccessible. (CVE-2008-0001, Important)

A flaw was found in the Xen PAL emulation on Intel 64 platforms. A guest Hardware-assisted virtual machine (HVM) could read the arbitrary physical memory of the host system, which could make information available to unauthorized users. (CVE-2007-6416, Important)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file, potentially containing sensitive information. (CVE-2007-6206, Moderate)

A buffer overflow flaw was found in the CIFS virtual file system. A remote,authenticated user could issue a request that could lead to a denial of service. (CVE-2007-5904, Moderate)

A flaw was found in the 'sysfs_readdir' function. A local user could create a race condition which would cause a denial of service (kernel oops). (CVE-2007-3104, Moderate)

As well, these updated packages fix the following bugs :

* running the 'strace -f' command caused strace to hang, without displaying information about child processes.

* unmounting an unresponsive, interruptable NFS mount, for example, one mounted with the 'intr' option, may have caused a system crash.

* a bug in the s2io.ko driver prevented VLAN devices from being added.
Attempting to add a device to a VLAN, for example, running the 'vconfig add [device-name] [vlan-id]' command caused vconfig to fail.

* tux used an incorrect open flag bit. This caused problems when building packages in a chroot environment, such as mock, which is used by the koji build system.

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

The wait_task_stopped function in the Linux kernel before 2.6.23.8 checks a TASK_TRACED bit instead of an exit_state value, which allows local users to cause a denial of service (machine crash) via unspecified vectors. NOTE: some of these details are obtained from third-party information. (CVE-2007-5500)

The tcp_sacktag_write_queue function in the Linux kernel 2.6.21 through 2.6.23.7 allowed remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference (CVE-2007-5501).

The do_corefump function in fs/exec.c in the Linux kernel prior to 2.6.24-rc3 did not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which could possibly allow local users to obtain sensitive information (CVE-2007-6206).

VFS in the Linux kernel before 2.6.22.16 performed tests of access mode by using the flag variable instead of the acc_mode variable, which could possibly allow local users to bypass intended permissions and remove directories (CVE-2008-0001).

The Linux kernel prior to 2.6.22.17, when using certain drivers that register a fault handler that does not perform range checks, allowed local users to access kernel memory via an out-of-range offset (CVE-2008-0007).

A flaw in the vmsplice system call did not properly verify address arguments passed by user-space processes, which allowed local attackers to overwrite arbitrary kernel memory and gain root privileges (CVE-2008-0600).

Mandriva urges all users to upgrade to these new kernels immediately as the CVE-2008-0600 flaw is being actively exploited. This issue only affects 2.6.17 and newer Linux kernels, so neither Corporate 3.0 nor Corporate 4.0 are affected.

Additionally, this kernel updates the version from 2.6.22.12 to 2.6.22.18 and fixes numerous other bugs, including :

  - fix freeze when ejecting a cm40x0 PCMCIA card

    - fix crash on unloading netrom

    - fixes alsa-related sound issues on Dell XPS M1210 and       M1330 models

    - the HZ value was increased on the laptop kernel to       increase interactivity and reduce latency

  - netfilter ipset, psd, and ifwlog support was re-enabled

    - unionfs was reverted to a working 1.4 branch that is       less buggy

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

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

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

The Datagram Congestion Control Protocol (DCCP) subsystem in the Linux kernel 2.6.18, and probably other versions, does not properly check feature lengths, which might allow remote attackers to execute arbitrary code, related to an unspecified overflow. (CVE-2008-2358)

VFS in the Linux kernel before 2.6.22.16, and 2.6.23.x before 2.6.23.14, performs tests of access mode by using the flag variable instead of the acc_mode variable, which might allow local users to bypass intended permissions and remove directories. (CVE-2008-0001)

Linux kernel before 2.6.22.17, when using certain drivers that register a fault handler that does not perform range checks, allows local users to access kernel memory via an out-of-range offset.
(CVE-2008-0007)

Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information. (CVE-2007-5966)

The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances related to tmpfs, which might allow local users to read sensitive kernel data or cause a denial of service (crash).
(CVE-2007-6417)

The isdn_ioctl function in isdn_common.c in Linux kernel 2.6.23 allows local users to cause a denial of service via a crafted ioctl struct in which iocts is not null terminated, which triggers a buffer overflow.
(CVE-2007-6151)

The do_coredump function in fs/exec.c in Linux kernel 2.4.x and 2.6.x up to 2.6.24-rc3, and possibly other versions, does not change the UID of a core dump file if it exists before a root process creates a core dump in the same location, which might allow local users to obtain sensitive information. (CVE-2007-6206)

Buffer overflow in the isdn_net_setcfg function in isdn_net.c in Linux kernel 2.6.23 allows local users to have an unknown impact via a crafted argument to the isdn_ioctl function. (CVE-2007-6063)

The wait_task_stopped function in the Linux kernel before 2.6.23.8 checks a TASK_TRACED bit instead of an exit_state value, which allows local users to cause a denial of service (machine crash) via unspecified vectors. NOTE: some of these details are obtained from third-party information. (CVE-2007-5500)

The minix filesystem code in Linux kernel 2.6.x before 2.6.24, including 2.6.18, allows local users to cause a denial of service (hang) via a malformed minix file stream that triggers an infinite loop in the minix_bmap function. NOTE: this issue might be due to an integer overflow or signedness error. (CVE-2006-6058)

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

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

The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service.
(CVE-2006-6058)

Alexander Schulze discovered that the skge driver does not properly use the spin_lock and spin_unlock functions. Remote attackers could exploit this by sending a flood of network traffic and cause a denial of service (crash). (CVE-2006-7229)

Hugh Dickins discovered that hugetlbfs performed certain prio_tree calculations using HPAGE_SIZE instead of PAGE_SIZE. A local user could exploit this and cause a denial of service via kernel panic.
(CVE-2007-4133)

Chris Evans discovered an issue with certain drivers that use the ieee80211_rx function. Remote attackers could send a crafted 802.11 frame and cause a denial of service via crash. (CVE-2007-4997)

Alex Smith discovered an issue with the pwc driver for certain webcam devices. A local user with physical access to the system could remove the device while a userspace application had it open and cause the USB subsystem to block. (CVE-2007-5093)

Scott James Remnant discovered a coding error in ptrace. Local users could exploit this and cause the kernel to enter an infinite loop.
(CVE-2007-5500)

Venustech AD-LAB discovered a buffer overflow in the isdn net subsystem. This issue is exploitable by local users via crafted input to the isdn_ioctl function. (CVE-2007-6063)

It was discovered that the isdn subsystem did not properly check for NULL termination when performing ioctl handling. A local user could exploit this to cause a denial of service. (CVE-2007-6151)

Blake Frantz discovered that when a root process overwrote an existing core file, the resulting core file retained the previous core file's ownership. Local users could exploit this to gain access to sensitive information. (CVE-2007-6206)

Hugh Dickins discovered the when using the tmpfs filesystem, under rare circumstances, a kernel page may be improperly cleared. A local user may be able to exploit this and read sensitive kernel data or cause a denial of service via crash. (CVE-2007-6417)

Bill Roman discovered that the VFS subsystem did not properly check access modes. A local user may be able to gain removal privileges on directories. (CVE-2008-0001).

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 is a respin of a previous one that broke CPUFREQ support (bug 357598).

Previous changes :

This kernel update fixes the following security problems :

CVE-2008-0007: Insufficient range checks in certain fault handlers could be used by local attackers to potentially read or write kernel memory.

CVE-2008-0001: Incorrect access mode checks could be used by local attackers to corrupt directory contents and so cause denial of service attacks or potentially execute code.

CVE-2007-5966: Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information.

CVE-2007-3843: The Linux kernel checked the wrong global variable for the CIFS sec mount option, which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures, as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.

CVE-2007-6417: The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances, which might allow local users to read sensitive kernel data or cause a denial of service (crash).

And the following bugs (numbers are https://bugzilla.novell.com/ references) :

  - patches.fixes/input-add-amilo-pro-v-to-nomux.patch: Add     Fujitsu-Siemens Amilo Pro 2010 to nomux list (345699).

  - patches.arch/acpica-psd.patch: Changed resolution of     named references in packages     (https://bugzilla.novell.com/show_bug.cgi?id=346831).

  - patches.fixes/acpica_sizeof.patch: SizeOf operator ACPI     interpreter fix     (http://bugzilla.kernel.org/show_bug.cgi?id=9558).

  - patches.drivers/libata-sata_sis-fix-scr-access:
    sata_sis: fix SCR access (331610).

  - patches.drivers/libata-tape-fix: libata: backport tape     support fixes (345438).

  - patches.arch/powernowk8_family_freq_from_fiddid.patch:
    To find the frequency given the fid and did is family     dependent. (#332722).

  - patches.drivers/libata-force-cable-type: libata:
    implement libata.force_cbl parameter (337610).

  - patches.drivers/libata-sata_nv-disable-ADMA: sata_nv:
    disable ADMA by default (346508).

  - patches.fixes/via-velocity-dont-oops-on-mtu-change-1:
    [VIA_VELOCITY]: Don't oops on MTU change. (341537).

  - patches.fixes/via-velocity-dont-oops-on-mtu-change-2:
    via-velocity: don't oops on MTU change while down     (341537).

- patches.fixes/sony-laptop-call-sonypi_compat_init-earlier: s ony-laptop: call sonypi_compat_init earlier (343483).

  - Updated kABI symbols for 2.6.22.15 changes, and Xen     x86_64 changes.

  - series.conf file cleanup: group together latency tracing     patches.

  - Fix a memory leak and a panic in drivers/block/cciss.c     patches.drivers/cciss-panic-in-blk_rq_map_sg: Panic in     blk_rq_map_sg() from CCISS driver.

  - patches.drivers/cciss-fix_memory_leak :

  - Address missed-interrupt issues discovered upstream.

  - Update to 2.6.22.15

  - fixes CVE-2007-5966

  - lots of libata fixes, which cause the following to be     removed :

    -     patches.drivers/libata-add-NCQ-spurious-completion-horka     ges

    -     patches.drivers/libata-add-ST9120822AS-to-NCQ-blacklist

    -     patches.drivers/libata-disable-NCQ-for-ST9160821AS-3.ALD

  - removed patches already in this release :

    -     patches.fixes/i4l-avoid-copying-an-overly-long-string.pa     tch :

  - patches.fixes/ramdisk-2.6.23-corruption_fix.diff

  - patches.fixes/microtek_hal.diff: Delete.

  - fixed previous poweroff regression from 2.6.22.10

  - lots of other fixes and some new pci ids.

  - Thousands of changes in patches.rt/ for the kernel-rt*     kernels.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/nfs-unmount-leak.patch: NFSv2/v3: Fix a     memory leak when using -onolock (336253).

  - add xenfb-module-param patch to make Xen virtual frame     buffer configurable in the guest domains, instead of a     fixed resolution of 800x600.

  - patches.xen/xen3-aux-at_vector_size.patch: Also include     x86-64 (310037).

  - patches.xen/xen3-patch-2.6.18: Fix system lockup     (335121).

  - patches.fixes/acpi_autoload_baydock.patch: autloading of     dock module (302482). Fixed a general bug with linux     specific hids there.

  - patches.xen/xen3-patch-2.6.22.11-12: Linux 2.6.22.12.

  - patches.xen/xen3-fixup-arch-i386: Fix CONFIG_APM=m     issue.

  - patches.xen/xen-x86-no-lapic: Re-diff.

This kernel update fixes the following security problems :

  - Insufficient range checks in certain fault handlers     could be used by local attackers to potentially read or     write kernel memory. (CVE-2008-0007)

  - Incorrect access mode checks could be used by local     attackers to corrupt directory contents and so cause     denial of service attacks or potentially execute code.
    (CVE-2008-0001)

  - Integer overflow in the hrtimer_start function in     kernel/hrtimer.c in the Linux kernel before 2.6.23.10     allows local users to execute arbitrary code or cause a     denial of service (panic) via a large relative timeout     value. NOTE: some of these details are obtained from     third-party information. (CVE-2007-5966)

  - The shmem_getpage function (mm/shmem.c) in Linux kernel     2.6.11 through 2.6.23 does not properly clear allocated     memory in some rare circumstances, which might allow     local users to read sensitive kernel data or cause a     denial of service (crash). (CVE-2007-6417)

Additionally the following bugfixes have been included for all platforms :

  - patches.suse/bootsplash: Bootsplash for current kernel     (none). patch the patch for Bug 345980.

  - patches.fixes/megaraid-fixup-driver-version: Megaraid     driver version out of sync (299740).

  - OCFS2: Updated to version 1.2.8

  - patches.fixes/ocfs2-1.2-svn-r3070.diff: [PATCH] ocfs2:
    Remove overzealous BUG_ON().

  - patches.fixes/ocfs2-1.2-svn-r3072.diff: [PATCH] ocfs2:
    fix rename vs unlink race.

  - patches.fixes/ocfs2-1.2-svn-r3074.diff: [PATCH] ocfs2:
    Remove expensive local alloc bitmap scan code.

  - patches.fixes/ocfs2-1.2-svn-r3057.diff: [PATCH] ocfs2:
    Check for cluster locking in ocfs2_readpage.

  - patches.fixes/ocfs2-1.2-svn-r2975.diff: ocfs2_dlm: make     functions static.

  - patches.fixes/ocfs2-1.2-svn-r2976.diff: [PATCH]     ocfs2_dlm: make tot_backoff more descriptive.

  - patches.fixes/ocfs2-1.2-svn-r3002.diff: [PATCH] ocfs2:
    Remove the printing of harmless ERRORS like ECONNRESET,     EPIPE..

  - patches.fixes/ocfs2-1.2-svn-r3004.diff: [PATCH]     ocfs2_dlm: Call cond_resched_lock() once per hash bucket     scan.

  - patches.fixes/ocfs2-1.2-svn-r3006.diff: [PATCH]     ocfs2_dlm: Silence compiler warnings.

  - patches.fixes/ocfs2-1.2-svn-r3062.diff: [PATCH]     ocfs2_dlm: Fix double increment of migrated lockres'     owner count.

  - patches.fixes/hugetlb-get_user_pages-corruption.patch:
    hugetlb: follow_hugetlb_page() for write access     (345239).

  - enable patches.fixes/reiserfs-fault-in-pages.patch     (333412)

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids. Get the module to build...

  -     patches.drivers/usb-add-usb_device_and_interface_info.pa     tch: USB: add USB_DEVICE_AND_INTERFACE_INFO(). This is     needed to get the HUAWEI devices to work properly, and     to get patches.drivers/usb-update-evdo-driver-ids.patch     to build without errors.

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids on request from our IT department     (345438).

  - patches.suse/kdump-dump_after_notifier.patch: Add     dump_after_notifier sysctl (265764).

  - patches.drivers/libata-sata_nv-disable-ADMA: sata_nv:
    disable ADMA by default (346508).

  - patches.fixes/cpufreq-fix-ondemand-deadlock.patch:
    Cpufreq fix ondemand deadlock (337439).

  -     patches.fixes/eliminate-cpufreq_userspace-scaling_setspe     ed-deadlock.patch: Eliminate cpufreq_userspace     scaling_setspeed deadlock (337439).

  - patches.xen/15181-dma-tracking.patch: Fix issue     preventing Xen KMPs from building.

  - patches.drivers/r8169-perform-a-PHY-reset-before.patch:
    r8169: perform a PHY reset before any other operation at     boot time (345658).

  - patches.drivers/r8169-more-alignment-for-the-0x8168:
    refresh.

  - patches.fixes/lockd-grant-shutdown: Stop GRANT callback     from crashing if NFS server has been stopped. (292478).
    There was a problem with this patch which would cause     apparently random crashes when lockd was in use. The     offending change has been removed.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/cifs-incomplete-recv.patch: fix incorrect     session reconnects (279783).

  - patches.fixes/megaraid_mbox-dell-cerc-support: Fix so     that it applies properly. I extended the context to 6     lines to help patch find where to apply the patch     (267134).

  - patches.fixes/md-idle-test: md: improve the     is_mddev_idle test fix (326591).

The minix filesystem did not properly validate certain filesystem values. If a local attacker could trick the system into attempting to mount a corrupted minix filesystem, the kernel could be made to hang for long periods of time, resulting in a denial of service. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2006-6058)

The signal handling on PowerPC systems using HTX allowed local users to cause a denial of service via floating point corruption. This was only vulnerable in Ubuntu 6.10 and 7.04. (CVE-2007-3107)

The Linux kernel did not properly validate the hop-by-hop IPv6 extended header. Remote attackers could send a crafted IPv6 packet and cause a denial of service via kernel panic. This was only vulnerable in Ubuntu 7.04. (CVE-2007-4567)

The JFFS2 filesystem with ACL support enabled did not properly store permissions during inode creation and ACL setting. Local users could possibly access restricted files after a remount. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4849)

Chris Evans discovered an issue with certain drivers that use the ieee80211_rx function. Remote attackers could send a crafted 802.11 frame and cause a denial of service via crash. This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-4997)

Alex Smith discovered an issue with the pwc driver for certain webcam devices. A local user with physical access to the system could remove the device while a userspace application had it open and cause the USB subsystem to block. This was only vulnerable in Ubuntu 7.04.
(CVE-2007-5093)

Scott James Remnant discovered a coding error in ptrace. Local users could exploit this and cause the kernel to enter an infinite loop.
This was only vulnerable in Ubuntu 7.04 and 7.10. (CVE-2007-5500)

It was discovered that the Linux kernel could dereference a NULL pointer when processing certain IPv4 TCP packets. A remote attacker could send a crafted TCP ACK response and cause a denial of service via crash. This was only vulnerable in Ubuntu 7.10. (CVE-2007-5501)

Warren Togami discovered that the hrtimer subsystem did not properly check for large relative timeouts. A local user could exploit this and cause a denial of service via soft lockup. (CVE-2007-5966)

Venustech AD-LAB discovered a buffer overflow in the isdn net subsystem. This issue is exploitable by local users via crafted input to the isdn_ioctl function. (CVE-2007-6063)

It was discovered that the isdn subsystem did not properly check for NULL termination when performing ioctl handling. A local user could exploit this to cause a denial of service. (CVE-2007-6151)

Blake Frantz discovered that when a root process overwrote an existing core file, the resulting core file retained the previous core file's ownership. Local users could exploit this to gain access to sensitive information. (CVE-2007-6206)

Hugh Dickins discovered the when using the tmpfs filesystem, under rare circumstances, a kernel page may be improperly cleared. A local user may be able to exploit this and read sensitive kernel data or cause a denial of service via crash. (CVE-2007-6417)

Bill Roman discovered that the VFS subsystem did not properly check access modes. A local user may be able to gain removal privileges on directories. (CVE-2008-0001).

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 and a bug in the Red Hat Enterprise Linux 4 kernel are now available.

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

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

These updated kernel packages fix the following security issues :

A flaw was found in the virtual filesystem (VFS). A local unprivileged user could truncate directories to which they had write permission;
this could render the contents of the directory inaccessible.
(CVE-2008-0001, Important)

A flaw was found in the implementation of ptrace. A local unprivileged user could trigger this flaw and possibly cause a denial of service (system hang). (CVE-2007-5500, Important)

A flaw was found in the way the Red Hat Enterprise Linux 4 kernel handled page faults when a CPU used the NUMA method for accessing memory on Itanium architectures. A local unprivileged user could trigger this flaw and cause a denial of service (system panic).
(CVE-2007-4130, Important)

A possible NULL pointer dereference was found in the chrp_show_cpuinfo function when using the PowerPC architecture. This may have allowed a local unprivileged user to cause a denial of service (crash).
(CVE-2007-6694, Moderate)

A flaw was found in the way core dump files were created. If a local user can get a root-owned process to dump a core file into a directory, which the user has write access to, they could gain read access to that core file. This could potentially grant unauthorized access to sensitive information. (CVE-2007-6206, Moderate)

Two buffer overflow flaws were found in the Linux kernel ISDN subsystem. A local unprivileged user could use these flaws to cause a denial of service. (CVE-2007-6063, CVE-2007-6151, Moderate)

As well, these updated packages fix the following bug :

* when moving volumes that contain multiple segments, and a mirror segment is not the first in the mapping table, running the 'pvmove /dev/[device] /dev/[device]' command caused a kernel panic. A 'kernel:
Unable to handle kernel paging request at virtual address [address]' error was logged by syslog.

Red Hat Enterprise Linux 4 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

This kernel update brings the kernel to version 2.6.22.16 and fixes the following security problems :

CVE-2008-0007: Insufficient range checks in certain fault handlers could be used by local attackers to potentially read or write kernel memory.

CVE-2008-0001: Incorrect access mode checks could be used by local attackers to corrupt directory contents and so cause denial of service attacks or potentially execute code.

CVE-2007-5966: Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information.

CVE-2007-3843: The Linux kernel checked the wrong global variable for the CIFS sec mount option, which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures, as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.

CVE-2007-6417: The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances, which might allow local users to read sensitive kernel data or cause a denial of service (crash).

And the following bugs (numbers are https://bugzilla.novell.com/ references) :

  - patches.fixes/input-add-amilo-pro-v-to-nomux.patch: Add     Fujitsu-Siemens Amilo Pro 2010 to nomux list (345699).

  - patches.arch/acpica-psd.patch: Changed resolution of     named references in packages     (https://bugzilla.novell.com/show_bug.cgi?id=346831).

  - patches.fixes/acpica_sizeof.patch: SizeOf operator ACPI     interpreter fix     (http://bugzilla.kernel.org/show_bug.cgi?id=9558).

  - patches.drivers/libata-sata_sis-fix-scr-access:
    sata_sis: fix SCR access (331610).

  - patches.drivers/libata-tape-fix: libata: backport tape     support fixes (345438).

  - patches.arch/powernowk8_family_freq_from_fiddid.patch:
    To find the frequency given the fid and did is family     dependent. (#332722).

  - patches.drivers/libata-force-cable-type: libata:
    implement libata.force_cbl parameter (337610).

  - patches.drivers/libata-sata_nv-disable-ADMA: sata_nv:
    disable ADMA by default (346508).

  - patches.fixes/via-velocity-dont-oops-on-mtu-change-1:
    [VIA_VELOCITY]: Don't oops on MTU change. (341537).

  - patches.fixes/via-velocity-dont-oops-on-mtu-change-2:
    via-velocity: don't oops on MTU change while down     (341537).

- patches.fixes/sony-laptop-call-sonypi_compat_init-earlier: s ony-laptop: call sonypi_compat_init earlier (343483).

  - Updated kABI symbols for 2.6.22.15 changes, and Xen     x86_64 changes.

  - series.conf file cleanup: group together latency tracing     patches.

  - Fix a memory leak and a panic in drivers/block/cciss.c     patches.drivers/cciss-panic-in-blk_rq_map_sg: Panic in     blk_rq_map_sg() from CCISS driver.

  - patches.drivers/cciss-fix_memory_leak :

  - Address missed-interrupt issues discovered upstream.

  - Update to 2.6.22.15

  - fixes CVE-2007-5966

  - lots of libata fixes, which cause the following to be     removed :

    -     patches.drivers/libata-add-NCQ-spurious-completion-horka     ges

    -     patches.drivers/libata-add-ST9120822AS-to-NCQ-blacklist

    -     patches.drivers/libata-disable-NCQ-for-ST9160821AS-3.ALD

  - removed patches already in this release :

    -     patches.fixes/i4l-avoid-copying-an-overly-long-string.pa     tch :

  - patches.fixes/ramdisk-2.6.23-corruption_fix.diff

  - patches.fixes/microtek_hal.diff: Delete.

  - fixed previous poweroff regression from 2.6.22.10

  - lots of other fixes and some new pci ids.

  - Thousands of changes in patches.rt/ for the kernel-rt*     kernels.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/nfs-unmount-leak.patch: NFSv2/v3: Fix a     memory leak when using -onolock (336253).

  - add xenfb-module-param patch to make Xen virtual frame     buffer configurable in the guest domains, instead of a     fixed resolution of 800x600.

  - patches.xen/xen3-aux-at_vector_size.patch: Also include     x86-64 (310037).

  - patches.xen/xen3-patch-2.6.18: Fix system lockup     (335121).

  - patches.fixes/acpi_autoload_baydock.patch: autloading of     dock module (302482). Fixed a general bug with linux     specific hids there.

  - patches.xen/xen3-patch-2.6.22.11-12: Linux 2.6.22.12.

  - patches.xen/xen3-fixup-arch-i386: Fix CONFIG_APM=m     issue.

  - patches.xen/xen-x86-no-lapic: Re-diff.

This kernel update fixes the following security problems :

CVE-2008-0007: Insufficient range checks in certain fault handlers could be used by local attackers to potentially read or write kernel memory.

CVE-2008-0001: Incorrect access mode checks could be used by local attackers to corrupt directory contents and so cause denial of service attacks or potentially execute code.

CVE-2007-5966: Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information.

CVE-2007-6417: The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances, which might allow local users to read sensitive kernel data or cause a denial of service (crash).

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

All platforms :

  - patches.suse/bootsplash: Bootsplash for current kernel     (none). patch the patch for Bug number 345980.

  - patches.fixes/megaraid-fixup-driver-version: Megaraid     driver version out of sync (299740).

  - OCFS2: Updated to version 1.2.8

  - patches.fixes/ocfs2-1.2-svn-r3070.diff: [PATCH] ocfs2:
    Remove overzealous BUG_ON().

  - patches.fixes/ocfs2-1.2-svn-r3072.diff: [PATCH] ocfs2:
    fix rename vs unlink race.

  - patches.fixes/ocfs2-1.2-svn-r3074.diff: [PATCH] ocfs2:
    Remove expensive local alloc bitmap scan code.

  - patches.fixes/ocfs2-1.2-svn-r3057.diff: [PATCH] ocfs2:
    Check for cluster locking in ocfs2_readpage.

  - patches.fixes/ocfs2-1.2-svn-r2975.diff: ocfs2_dlm: make     functions static.

  - patches.fixes/ocfs2-1.2-svn-r2976.diff: [PATCH]     ocfs2_dlm: make tot_backoff more descriptive.

  - patches.fixes/ocfs2-1.2-svn-r3002.diff: [PATCH] ocfs2:
    Remove the printing of harmless ERRORS like ECONNRESET,     EPIPE..

  - patches.fixes/ocfs2-1.2-svn-r3004.diff: [PATCH]     ocfs2_dlm: Call cond_resched_lock() once per hash bucket     scan.

  - patches.fixes/ocfs2-1.2-svn-r3006.diff: [PATCH]     ocfs2_dlm: Silence compiler warnings.

  - patches.fixes/ocfs2-1.2-svn-r3062.diff: [PATCH]     ocfs2_dlm: Fix double increment of migrated lockres'     owner count.

  - patches.fixes/hugetlb-get_user_pages-corruption.patch:
    hugetlb: follow_hugetlb_page() for write access     (345239).

  - enable patches.fixes/reiserfs-fault-in-pages.patch     (333412)

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids. Get the module to build...

- patches.drivers/usb-add-usb_device_and_interface_info.patch: USB:
add USB_DEVICE_AND_INTERFACE_INFO(). This is needed to get the HUAWEI devices to work properly, and to get patches.drivers/usb-update-evdo-driver-ids.patch to build without errors.

  - patches.drivers/usb-update-evdo-driver-ids.patch: USB:
    update evdo driver ids on request from our IT department     (345438).

  - patches.suse/kdump-dump_after_notifier.patch: Add     dump_after_notifier sysctl (265764).

  - patches.drivers/libata-sata_nv-disable-ADMA: sata_nv:
    disable ADMA by default (346508).

  - patches.fixes/cpufreq-fix-ondemand-deadlock.patch:
    Cpufreq fix ondemand deadlock (337439).

- patches.fixes/eliminate-cpufreq_userspace-scaling_setspeed-d eadlock.patch: Eliminate cpufreq_userspace scaling_setspeed deadlock (337439).

  - patches.xen/15181-dma-tracking.patch: Fix issue     preventing Xen KMPs from building.

  - patches.drivers/r8169-perform-a-PHY-reset-before.patch:
    r8169: perform a PHY reset before any other operation at     boot time (345658).

  - patches.drivers/r8169-more-alignment-for-the-0x8168:
    refresh.

  - patches.fixes/lockd-grant-shutdown: Stop GRANT callback     from crashing if NFS server has been stopped. (292478).
    There was a problem with this patch which would cause     apparently random crashes when lockd was in use. The     offending change has been removed.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/cifs-incomplete-recv.patch: fix incorrect     session reconnects (279783).

  - patches.fixes/megaraid_mbox-dell-cerc-support: Fix so     that it applies properly. I extended the context to 6     lines to help patch find where to apply the patch     (267134).

  - patches.fixes/md-idle-test: md: improve the     is_mddev_idle test fix (326591).

AMD64/Intel EM64T (x86_64) specific :

  - patches.arch/x86_64-mce-loop: x86_64: fix misplaced     `continue' in mce.c (344239).

This kernel update fixes the following security problems :

CVE-2008-0007: Insufficient range checks in certain fault handlers could be used by local attackers to potentially read or write kernel memory.

CVE-2008-0001: Incorrect access mode checks could be used by local attackers to corrupt directory contents and so cause denial of service attacks or potentially execute code.

CVE-2007-5966: Integer overflow in the hrtimer_start function in kernel/hrtimer.c in the Linux kernel before 2.6.23.10 allows local users to execute arbitrary code or cause a denial of service (panic) via a large relative timeout value. NOTE: some of these details are obtained from third-party information.

CVE-2007-3843: The Linux kernel checked the wrong global variable for the CIFS sec mount option, which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures, as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.

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.

CVE-2007-6417: The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances, which might allow local users to read sensitive kernel data or cause a denial of service (crash).

CVE-2007-4308: The (1) aac_cfg_open and (2) aac_compat_ioctl functions in the SCSI layer ioctl path in aacraid in the Linux kernel did not check permissions for ioctls, which might have allowed local users to cause a denial of service or gain privileges.

CVE-2007-3740: The CIFS filesystem, when Unix extension support is enabled, does not honor the umask of a process, which allows local users to gain privileges.

CVE-2007-3848: The Linux kernel allowed local users to send arbitrary signals to a child process that is running at higher privileges by causing a setuid-root parent process to die, which delivers an attacker-controlled parent process death signal (PR_SET_PDEATHSIG).

CVE-2007-4997: Integer underflow in the ieee80211_rx function in net/ieee80211/ieee80211_rx.c in the Linux kernel allowed remote attackers to cause a denial of service (crash) via a crafted SKB length value in a runt IEEE 802.11 frame when the IEEE80211_STYPE_QOS_DATA flag is set, aka an 'off-by-two error.'

CVE-2007-6063: Buffer overflow in the isdn_net_setcfg function in isdn_net.c in the Linux kernel allowed local users to have an unknown impact via a crafted argument to the isdn_ioctl function.

CVE-none-yet: A failed change_hat call can result in an apparmored task becoming unconfined (326546).

and the following non security bugs :

  - patches.suse/apparmor-r206-310260.diff: AppArmor - add     audit capability names (310260).

  - patches.suse/apparmor-r326-240982.diff: AppArmor - fix     memory corruption if policy load fails (240982).

  - patches.suse/apparmor-r400-221567.diff: AppArmor -     kernel dead locks when audit back log occurs (221567).

  - patches.suse/apparmor-r405-247679.diff: AppArmor -     apparmor fails to log link reject in complain mode     (247679).

  - patches.suse/apparmor-r473-326556.diff: AppArmor - fix     race on ambiguous deleted file name (326556).

  - patches.suse/apparmor-r479-257748.diff: AppArmor - fix     kernel crash that can occur on profile removal (257748).

  - patches.fixes/usb_unusual_292931.diff: add quirk needed     for 1652:6600 (292931).

  - patches.drivers/r8169-perform-a-PHY-reset-before.patch:
    r8169: perform a PHY reset before any other operation at     boot time (345658).

  - patches.drivers/r8169-more-alignment-for-the-0x8168:
    refresh.

  - patches.fixes/usb_336850.diff: fix missing quirk leading     to a device disconnecting under load (336850).

  - patches.fixes/avm-fix-capilib-locking: [ISDN] Fix random     hard freeze with AVM cards. (#341894)

Several local 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-2007-2878     Bart Oldeman reported a denial of service (DoS) issue in     the VFAT filesystem that allows local users to corrupt a     kernel structure resulting in a system crash. This is     only an issue for systems which make use of the VFAT     compat ioctl interface, such as systems running an     'amd64' flavor kernel.

  - CVE-2007-4571     Takashi Iwai supplied a fix for a memory leak in the     snd_page_alloc module. Local users could exploit this     issue to obtain sensitive information from the kernel.

  - 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-2008-0001     Bill Roman of Datalight noticed a coding error in the     linux VFS subsystem that, under certain conditions, can     allow local users to remove directories for which they     should not have removal privileges.

These problems have been fixed in the stable distribution in version 2.6.18.dfsg.1-17etch1.

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2008:0089 advisory.

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

    These new kernel packages fix the following security issues:

    A flaw was found in the virtual filesystem (VFS). An unprivileged local     user could truncate directories to which they had write permission; this     could render the contents of the directory inaccessible. (CVE-2008-0001,     Important)

    A flaw was found in the Xen PAL emulation on Intel 64 platforms. A guest     Hardware-assisted virtual machine (HVM) could read the arbitrary physical     memory of the host system, which could make information available to     unauthorized users. (CVE-2007-6416, Important)

    A flaw was found in the way core dump files were created. If a local user     can get a root-owned process to dump a core file into a directory, which     the user has write access to, they could gain read access to that core     file, potentially containing sensitive information. (CVE-2007-6206, Moderate)

    A buffer overflow flaw was found in the CIFS virtual file system. A     remote,authenticated user could issue a request that could lead to a denial     of service. (CVE-2007-5904, Moderate)

    A flaw was found in the sysfs_readdir function. A local user could create     a race condition which would cause a denial of service (kernel oops).
    (CVE-2007-3104, Moderate)

    As well, these updated packages fix the following bugs:

    * running the strace -f command caused strace to hang, without displaying     information about child processes.

    * unmounting an unresponsive, interruptable NFS mount, for example, one     mounted with the intr option, may have caused a system crash.

    * a bug in the s2io.ko driver prevented VLAN devices from being added.
    Attempting to add a device to a VLAN, for example, running the vconfig     add [device-name] [vlan-id] command caused vconfig to fail.

    * tux used an incorrect open flag bit. This caused problems when building     packages in a chroot environment, such as mock, which is used by the koji     build system.

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

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

Update to Linux kernel 2.6.23.14:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.23.14

CVE-2008-0001: Use access mode instead of open flags to determine needed permissions.

Additional fixes: Enable CONFIG_NL80211. Wireless driver updates.
Firewire updates. LIRC updates.

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.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0089.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0055.

ID	Name	Product	Family	Severity
79447	OracleVM 2.1 : kernel (OVMSA-2008-2005)	Nessus	OracleVM Local Security Checks	high
67645	Oracle Linux 5 : Important: / kernel (ELSA-2008-0089)	Nessus	Oracle Linux Local Security Checks	medium
67641	Oracle Linux 4 : kernel (ELSA-2008-0055)	Nessus	Oracle Linux Local Security Checks	high
60354	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
60351	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	medium
59126	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 4938)	Nessus	SuSE Local Security Checks	high
43672	CentOS 5 : kernel (CESA-2008:0089)	Nessus	CentOS Local Security Checks	medium
36924	Mandriva Linux Security Advisory : kernel (MDVSA-2008:044)	Nessus	Mandriva Local Security Checks	high
36852	Mandriva Linux Security Advisory : kernel (MDVSA-2008:112)	Nessus	Mandriva Local Security Checks	high
31093	Ubuntu 6.06 LTS : linux-source-2.6.15 vulnerabilities (USN-578-1)	Nessus	Ubuntu Local Security Checks	high
30250	openSUSE 10 Security Update : kernel (kernel-4970)	Nessus	SuSE Local Security Checks	high
30249	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 4935)	Nessus	SuSE Local Security Checks	high
30183	Ubuntu 6.10 / 7.04 / 7.10 : linux-source-2.6.17/20/22 vulnerabilities (USN-574-1)	Nessus	Ubuntu Local Security Checks	high
30154	CentOS 4 : kernel (CESA-2008:0055)	Nessus	CentOS Local Security Checks	high
30144	openSUSE 10 Security Update : kernel (kernel-4943)	Nessus	SuSE Local Security Checks	high
30143	openSUSE 10 Security Update : kernel (kernel-4941)	Nessus	SuSE Local Security Checks	high
30142	openSUSE 10 Security Update : kernel (kernel-4929)	Nessus	SuSE Local Security Checks	high
30140	RHEL 4 : kernel (RHSA-2008:0055)	Nessus	Red Hat Local Security Checks	high
30126	Debian DSA-1479-1 : linux-2.6 - several vulnerabilities	Nessus	Debian Local Security Checks	high
30090	RHEL 5 : kernel (RHSA-2008:0089)	Nessus	Red Hat Local Security Checks	critical
30072	Fedora 8 : kernel-2.6.23.14-107.fc8 (2008-0748)	Nessus	Fedora Local Security Checks	low
801445	CentOS RHSA-2008-0089 Security Check	Log Correlation Engine	Generic	high
801444	CentOS RHSA-2008-0055 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2008-0001

high

Tenable Plugins

high

medium

high

high

medium

high

medium

high

high

high

high

high

high

high

high

high

high

high

high

critical

low

high

high