gcc 4.3.x does not generate a cld instruction while compiling functions used for string manipulation such as memcpy and memmove on x86 and i386, which can prevent the direction flag (DF) from being reset in violation of ABI conventions and cause data to be copied in the wrong direction during signal handling in the Linux kernel, which might allow context-dependent attackers to trigger memory corruption. NOTE: this issue was originally reported for CPU consumption in SBCL.

From Red Hat Security Advisory 2008:0508 :

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

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 packages fix the following security issues :

* A security flaw was found in the Linux kernel memory copy routines, when running on certain AMD64 systems. If an unsuccessful attempt to copy kernel memory from source to destination memory locations occurred, the copy routines did not zero the content at the destination memory location. This could allow a local unprivileged user to view potentially sensitive data. (CVE-2008-2729, Important)

* Alexey Dobriyan discovered a race condition in the Linux kernel process-tracing system call, ptrace. A local unprivileged user could use this flaw to cause a denial of service (kernel hang).
(CVE-2008-2365, Important)

* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local unprivileged user to prepare and run a specially crafted binary, which would use this deficiency to leak uninitialized and potentially sensitive data.
(CVE-2008-0598, Important)

* It was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bug :

* On systems with a large number of CPUs (more than 16), multiple applications calling the 'times()' system call may have caused a system hang.

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

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2008-0233 advisory.

    - Update: [fs] fix race condition in dnotify (Alexander Viro ) [439758] {CVE-2008-1375}
    - Update: [xen] ia64: ftp stress test fixes between HVM/Dom0 (Tetsu Yamamoto ) [427400] {CVE-2008-1619}
    - Update: [fs] fix race condition in dnotify (Alexander Viro ) [439758] {CVE-2008-1375}
    - [fs] fix race condition in dnotify (Alexander Viro ) [439758] {CVE-2008-1375}
    - [x86] clear df flag for signal handlers (Jason Baron ) [437316] {CVE-2008-1367}
    - [xen] ia64: ftp stress test fixes between HVM/Dom0 (Tetsu Yamamoto ) [427400] {CVE-2008-1619}
    - [xen] ia64: fix ssm_i emulation barrier and vdso pv (Tetsu Yamamoto ) [427400] {CVE-2008-1619}

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 2008:0211 :

Updated kernel packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 3.

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 packages fix the following security issues :

* the absence of a protection mechanism when attempting to access a critical section of code has been found in the Linux kernel open file descriptors control mechanism, fcntl. This could allow a local unprivileged user to simultaneously execute code, which would otherwise be protected against parallel execution. As well, a race condition when handling locks in the Linux kernel fcntl functionality, may have allowed a process belonging to a local unprivileged user to gain re-ordered access to the descriptor table. (CVE-2008-1669, Important)

* the absence of a protection mechanism when attempting to access a critical section of code, as well as a race condition, have been found in the Linux kernel file system event notifier, dnotify. This could allow a local unprivileged user to get inconsistent data, or to send arbitrary signals to arbitrary system processes. (CVE-2008-1375, Important)

Red Hat would like to thank Nick Piggin for responsibly disclosing the following issue :

* when accessing kernel memory locations, certain Linux kernel drivers registering a fault handler did not perform required range checks. A local unprivileged user could use this flaw to gain read or write access to arbitrary kernel memory, or possibly cause a kernel crash.
(CVE-2008-0007, Important)

* a flaw was found when performing asynchronous input or output operations on a FIFO special file. A local unprivileged user could use this flaw to cause a kernel panic. (CVE-2007-5001, Important)

* a flaw was found in the way core dump files were created. If a local user could 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)

* a buffer overflow was found in the Linux kernel ISDN subsystem. A local unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6151, Moderate)

* a race condition found in the mincore system core could allow a local user to cause a denial of service (system hang). (CVE-2006-4814, Moderate)

* it was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

* a bug, which caused long delays when unmounting mounts containing a large number of unused dentries, has been resolved.

* in the previous kernel packages, the kernel was unable to handle certain floating point instructions on Itanium(R) architectures.

* on certain Intel CPUs, the Translation Lookaside Buffer (TLB) was not flushed correctly, which caused machine check errors.

Red Hat Enterprise Linux 3 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

These updated packages fix the following security issues :

  - A security flaw was found in the Linux kernel memory     copy routines, when running on certain AMD64 systems. If     an unsuccessful attempt to copy kernel memory from     source to destination memory locations occurred, the     copy routines did not zero the content at the     destination memory location. This could allow a local     unprivileged user to view potentially sensitive data.
    (CVE-2008-2729, Important)

  - Alexey Dobriyan discovered a race condition in the Linux     kernel process-tracing system call, ptrace. A local     unprivileged user could use this flaw to cause a denial     of service (kernel hang). (CVE-2008-2365, Important)

  - Tavis Ormandy discovered a deficiency in the Linux     kernel 32-bit and 64-bit emulation. This could allow a     local unprivileged user to prepare and run a specially     crafted binary, which would use this deficiency to leak     uninitialized and potentially sensitive data.
    (CVE-2008-0598, Important)

  - It was discovered that the Linux kernel handled string     operations in the opposite way to the GNU Compiler     Collection (GCC). This could allow a local unprivileged     user to cause memory corruption. (CVE-2008-1367, Low)

As well, these updated packages fix the following bug :

  - On systems with a large number of CPUs (more than 16),     multiple applications calling the 'times()' system call     may have caused a system hang.

These updated packages fix the following security issues :

  - the absence of a protection mechanism when attempting to     access a critical section of code has been found in the     Linux kernel open file descriptors control mechanism,     fcntl. This could allow a local unprivileged user to     simultaneously execute code, which would otherwise be     protected against parallel execution. As well, a race     condition when handling locks in the Linux kernel fcntl     functionality, may have allowed a process belonging to a     local unprivileged user to gain re-ordered access to the     descriptor table. (CVE-2008-1669, Important)

  - a possible hypervisor panic was found in the Linux     kernel. A privileged user of a fully virtualized guest     could initiate a stress-test File Transfer Protocol     (FTP) transfer between the guest and the hypervisor,     possibly leading to hypervisor panic. (CVE-2008-1619,     Important)

  - the absence of a protection mechanism when attempting to     access a critical section of code, as well as a race     condition, have been found in the Linux kernel file     system event notifier, dnotify. This could allow a local     unprivileged user to get inconsistent data, or to send     arbitrary signals to arbitrary system processes.
    (CVE-2008-1375, Important)

  - when accessing kernel memory locations, certain Linux     kernel drivers registering a fault handler did not     perform required range checks. A local unprivileged user     could use this flaw to gain read or write access to     arbitrary kernel memory, or possibly cause a kernel     crash. (CVE-2008-0007, Important)

  - the absence of sanity-checks was found in the hypervisor     block backend driver, when running 32-bit     paravirtualized guests on a 64-bit host. The number of     blocks to be processed per one request from guest to     host, or vice-versa, was not checked for its maximum     value, which could have allowed a local privileged user     of the guest operating system to cause a denial of     service. (CVE-2007-5498, Important)

  - it was discovered that the Linux kernel handled string     operations in the opposite way to the GNU Compiler     Collection (GCC). This could allow a local unprivileged     user to cause memory corruption. (CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

  - on IBM System z architectures, when running QIOASSIST     enabled QDIO devices in an IBM z/VM environment, the     output queue stalled under heavy load. This caused     network performance to degrade, possibly causing network     hangs and outages.

  - multiple buffer overflows were discovered in the neofb     video driver. It was not possible for an unprivileged     user to exploit these issues, and as such, they have not     been handled as security issues.

  - when running Microsoft Windows in a HVM, a bug in     vmalloc/vfree caused network performance to degrade.

  - on certain architectures, a bug in the libATA sata_nv     driver may have caused infinite reboots, and an 'ata1:
    CPB flags CMD err flags 0x11' error.

  - repeatedly hot-plugging a PCI Express card may have     caused 'Bad DLLP' errors.

  - a NULL pointer dereference in NFS, which may have caused     applications to crash, has been resolved.

  - when attempting to kexec reboot, either manually or via     a panic-triggered kdump, the Unisys ES7000/one hanged     after rebooting in the new kernel, after printing the     'Memory: 32839688k/33685504k available' line.

These updated packages fix the following security issues :

  - the absence of a protection mechanism when attempting to     access a critical section of code has been found in the     Linux kernel open file descriptors control mechanism,     fcntl. This could allow a local unprivileged user to     simultaneously execute code, which would otherwise be     protected against parallel execution. As well, a race     condition when handling locks in the Linux kernel fcntl     functionality, may have allowed a process belonging to a     local unprivileged user to gain re-ordered access to the     descriptor table. (CVE-2008-1669, Important)

  - the absence of a protection mechanism when attempting to     access a critical section of code, as well as a race     condition, have been found in the Linux kernel file     system event notifier, dnotify. This could allow a local     unprivileged user to get inconsistent data, or to send     arbitrary signals to arbitrary system processes.
    (CVE-2008-1375, Important)

  - when accessing kernel memory locations, certain Linux     kernel drivers registering a fault handler did not     perform required range checks. A local unprivileged user     could use this flaw to gain read or write access to     arbitrary kernel memory, or possibly cause a kernel     crash. (CVE-2008-0007, Important)

  - a flaw was found when performing asynchronous input or     output operations on a FIFO special file. A local     unprivileged user could use this flaw to cause a kernel     panic. (CVE-2007-5001, Important)

  - a flaw was found in the way core dump files were     created. If a local user could 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)

  - a buffer overflow was found in the Linux kernel ISDN     subsystem. A local unprivileged user could use this flaw     to cause a denial of service. (CVE-2007-6151, Moderate)

  - a race condition found in the mincore system core could     allow a local user to cause a denial of service (system     hang). (CVE-2006-4814, Moderate)

  - it was discovered that the Linux kernel handled string     operations in the opposite way to the GNU Compiler     Collection (GCC). This could allow a local unprivileged     user to cause memory corruption. (CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

  - a bug, which caused long delays when unmounting mounts     containing a large number of unused dentries, has been     resolved.

  - in the previous kernel packages, the kernel was unable     to handle certain floating point instructions on     Itanium(R) architectures.

  - on certain Intel CPUs, the Translation Lookaside Buffer     (TLB) was not flushed correctly, which caused machine     check errors.

This kernel update fixes quite a number of security problems :

  - A remote attacker could crash the IPSec/IPv6 stack by     sending a bad ESP packet. This requires the host to be     able to receive such packets (default filtered by the     firewall). (CVE-2007-6282)

  - A problem in SIT IPv6 tunnel handling could be used by     remote attackers to immediately crash the machine.
    (CVE-2008-2136)

  - On x86_64 a denial of service attack could be used by     local attackers to immediately panic / crash the     machine. (CVE-2008-1615)

  - An information leakage during coredumping of root     processes was fixed. (CVE-2007-6206)

  - Fixed a SMP ordering problem in fcntl_setlk could     potentially allow local attackers to execute code by     timing file locking. (CVE-2008-1669)

  - Fixed a dnotify race condition, which could be used by     local attackers to potentially execute code.
    (CVE-2008-1375)

  - A ptrace bug could be used by local attackers to hang     their own processes indefinitely. (CVE-2007-5500)

  - Clear the 'direction' flag before calling signal     handlers. For specific not yet identified programs under     specific timing conditions this could potentially have     caused memory corruption or code execution.
    (CVE-2008-1367)

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

Non security related changes :

OCFS2 was updated to version v1.2.9-1-r3100.

Also a huge number of bugs were fixed. Please refer to the RPM changelog for a detailed list.

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

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 packages fix the following security issues :

* the absence of a protection mechanism when attempting to access a critical section of code has been found in the Linux kernel open file descriptors control mechanism, fcntl. This could allow a local unprivileged user to simultaneously execute code, which would otherwise be protected against parallel execution. As well, a race condition when handling locks in the Linux kernel fcntl functionality, may have allowed a process belonging to a local unprivileged user to gain re-ordered access to the descriptor table. (CVE-2008-1669, Important)

* a possible hypervisor panic was found in the Linux kernel. A privileged user of a fully virtualized guest could initiate a stress-test File Transfer Protocol (FTP) transfer between the guest and the hypervisor, possibly leading to hypervisor panic.
(CVE-2008-1619, Important)

* the absence of a protection mechanism when attempting to access a critical section of code, as well as a race condition, have been found in the Linux kernel file system event notifier, dnotify. This could allow a local unprivileged user to get inconsistent data, or to send arbitrary signals to arbitrary system processes. (CVE-2008-1375, Important)

Red Hat would like to thank Nick Piggin for responsibly disclosing the following issue :

* when accessing kernel memory locations, certain Linux kernel drivers registering a fault handler did not perform required range checks. A local unprivileged user could use this flaw to gain read or write access to arbitrary kernel memory, or possibly cause a kernel crash.
(CVE-2008-0007, Important)

* the absence of sanity-checks was found in the hypervisor block backend driver, when running 32-bit paravirtualized guests on a 64-bit host. The number of blocks to be processed per one request from guest to host, or vice-versa, was not checked for its maximum value, which could have allowed a local privileged user of the guest operating system to cause a denial of service. (CVE-2007-5498, Important)

* it was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

* on IBM System z architectures, when running QIOASSIST enabled QDIO devices in an IBM z/VM environment, the output queue stalled under heavy load. This caused network performance to degrade, possibly causing network hangs and outages.

* multiple buffer overflows were discovered in the neofb video driver.
It was not possible for an unprivileged user to exploit these issues, and as such, they have not been handled as security issues.

* when running Microsoft Windows in a HVM, a bug in vmalloc/vfree caused network performance to degrade.

* on certain architectures, a bug in the libATA sata_nv driver may have caused infinite reboots, and an 'ata1: CPB flags CMD err flags 0x11' error.

* repeatedly hot-plugging a PCI Express card may have caused 'Bad DLLP' errors.

* a NULL pointer dereference in NFS, which may have caused applications to crash, has been resolved.

* when attempting to kexec reboot, either manually or via a panic-triggered kdump, the Unisys ES7000/one hanged after rebooting in the new kernel, after printing the 'Memory: 32839688k/33685504k available' line.

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

I   Service Console rpm updates

 a.  Security Update to Service Console Kernel

   This fix upgrades service console kernel version to 2.4.21-57.EL.

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the names CVE-2007-5001, CVE-2007-6151, CVE-2007-6206,    CVE-2008-0007, CVE-2008-1367, CVE-2008-1375, CVE-2006-4814, and    CVE-2008-1669 to the security issues fixed in kernel-2.4.21-57.EL.

 b.  Samba Security Update

   This fix upgrades the service console rpm samba to version    3.0.9-1.3E.15vmw

   The Common Vulnerabilities and Exposures project (cve.mitre.org)    has assigned the name CVE-2008-1105 to this issue.

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

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 packages fix the following security issues :

* A security flaw was found in the Linux kernel memory copy routines, when running on certain AMD64 systems. If an unsuccessful attempt to copy kernel memory from source to destination memory locations occurred, the copy routines did not zero the content at the destination memory location. This could allow a local unprivileged user to view potentially sensitive data. (CVE-2008-2729, Important)

* Alexey Dobriyan discovered a race condition in the Linux kernel process-tracing system call, ptrace. A local unprivileged user could use this flaw to cause a denial of service (kernel hang).
(CVE-2008-2365, Important)

* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and 64-bit emulation. This could allow a local unprivileged user to prepare and run a specially crafted binary, which would use this deficiency to leak uninitialized and potentially sensitive data.
(CVE-2008-0598, Important)

* It was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bug :

* On systems with a large number of CPUs (more than 16), multiple applications calling the 'times()' system call may have caused a system hang.

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 fixes the following security problems:
CVE-2008-2136: A problem in SIT IPv6 tunnel handling could be used by remote attackers to immediately crash the machine.

CVE-2008-1615: On x86_64 a denial of service attack could be used by local attackers to immediately panic / crash the machine.

CVE-2008-2148: The permission checking in sys_utimensat was incorrect and local attackers could change the filetimes of files they do not own to the current time.

CVE-2008-1669: Fixed a SMP ordering problem in fcntl_setlk could potentially allow local attackers to execute code by timing file locking.

CVE-2008-1375: Fixed a dnotify race condition, which could be used by local attackers to potentially execute code.

CVE-2007-6282: A remote attacker could crash the IPSec/IPv6 stack by sending a bad ESP packet. This requires the host to be able to receive such packets (default filtered by the firewall).

CVE-2008-1367: Clear the 'direction' flag before calling signal handlers. For specific not yet identified programs under specific timing conditions this could potentially have caused memory corruption or code execution.

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

  - patches.fixes/input-add-amilo-pro-v-to-nomux.patch:
    Update the patch to include also 2030 model to nomux     list (bnc#389169).

  - patches.apparmor/fix-net.diff: AppArmor: fix Oops in     apparmor_socket_getpeersec_dgram() (bnc#378608).

  - patches.fixes/input-alps-update.patch: Input: fix the     AlpsPS2 driver (bnc#357881).

- patches.arch/cpufreq_fix_acpi_driver_on_BIOS_changes.patch: CPUFREQ:
Check against freq changes from the BIOS (334378).

- patches.fixes/ieee1394-limit-early-node-speed-to-host-interf ace-speed: ieee1394: limit early node speed to host interface speed (381304).

  - patches.fixes/forcedeth_realtec_phy_fix: Fix a     regression to the GA kernel for some forcedeth cards     (bnc#379478)

  - pci-revert-SMBus-unhide-on-nx6110.patch: Do not unhide     the SMBus on the HP Compaq nx6110, it's unsafe.

  - patches.drivers/e1000-disable-l1aspm.patch: Disable L1     ASPM power savings for 82573 mobile variants, it's     broken (bnc#254713, LTC34077).

  - patches.drivers/libata-improve-hpa-error-handling:
    libata: improve HPA error handling (365534).

  - rpm/kernel-binary.spec.in: Added Conflicts:
    libc.so.6()(64bit) to i386 arch (364433).

- patches.drivers/libata-disallow-sysfs-read-access-to-force-p aram:
libata: don't allow sysfs read access to force param (362599).

  - patches.suse/bonding-workqueue: Update to fix a hang     when closing a bonding device (342994).

  - patches.fixes/mptspi-dv-renegotiate-oops: mptlinux     crashes on kernel 2.6.22 (bnc#271749).

- patches.drivers/usb-update-sierra-and-option-device-ids-from

  -2.6.25-rc3.patch: USB: update sierra and option device   ids from 2.6.25-rc3 (343167).

  - patches.arch/x86-nvidia-timer-quirk: Disable again     (#302327) The PCI ID lists are not complete enough and     let's have the same crap as mainline for this for now.

  - patches.fixes/input-add-lenovo-3000-n100-to-nomux.patch:
    Input: add Lenovo 3000 N100 to nomux blacklist     (bnc#284013).

  - patches.suse/bonding-bh-locking: Add missing chunks. The     SLES10 SP1 version of the patch was updated in May 2007     but the openSuse 10.3 version was forgotten (260069).

- patches.fixes/knfsd-Allow-NFSv2-3-WRITE-calls-to-succeed-whe n-krb.patch: knfsd: Allow NFSv2/3 WRITE calls to succeed when krb5i etc is used. (348737).

- patches.fixes/md-fix-an-occasional-deadlock-in-raid5.patch: md: fix an occasional deadlock in raid5 (357088).

  - patches.drivers/libata-quirk_amd_ide_mode: PCI: modify     SATA IDE mode quirk (345124).

  - Fix section mismatch build failure w/ gcc 4.1.2. bug     #361086.

  - patches.drivers/libata-implement-force-parameter:
    libata: implement libata.force module parameter     (337610).

Lots of XEN Fixes (not detailed listed). Lots of RT Fixes (not detailed listed).

  - Update to 2.6.22.18

  - removes upstreamed patch :

  - patches.fixes/vmsplice-pipe-exploit (CVE-2008-0600)

This kernel update fixes the following security problems :

CVE-2008-1615: On x86_64 a denial of service attack could be used by local attackers to immediately panic / crash the machine.

CVE-2008-2358: A security problem in DCCP was fixed, which could be used by remote attackers to crash the machine.

CVE-2007-6206: An information leakage during coredumping of root processes was fixed.

CVE-2007-6712: A integer overflow in the hrtimer_forward function (hrtimer.c) in Linux kernel, when running on 64-bit systems, allows local users to cause a denial of service (infinite loop) via a timer with a large expiry value, which causes the timer to always be expired.

CVE-2008-2136: A problem in SIT IPv6 tunnel handling could be used by remote attackers to immediately crash the machine.

CVE-2008-1669: Fixed a SMP ordering problem in fcntl_setlk could potentially allow local attackers to execute code by timing file locking.

CVE-2008-1367: Clear the 'direction' flag before calling signal handlers. For specific not yet identified programs under specific timing conditions this could potentially have caused memory corruption or code execution.

CVE-2008-1375: Fixed a dnotify race condition, which could be used by local attackers to potentially execute code.

CVE-2007-6282: A remote attacker could crash the IPSec/IPv6 stack by sending a bad ESP packet. This requires the host to be able to receive such packets (default filtered by the firewall).

CVE-2007-5500: A ptrace bug could be used by local attackers to hang their own processes indefinitely.

CVE-2007-5904: A remote buffer overflow in CIFS was fixed which could be used by remote attackers to crash the machine or potentially execute code.

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

  - patches.arch/x86-nosmp-implies-noapic.patch: When     booting with nosmp or maxcpus=0 on i386 or x86-64, we     must disable the I/O APIC, otherwise the system won't     boot in most cases (bnc#308540).

  - patches.arch/i386-at-sysinfo-ehdr: i386: make     AT_SYSINFO_EHDR consistent with AT_SYSINFO (bnc#289641).

  - patches.suse/bonding-workqueue: Update to fix a hang     when closing a bonding device (342994).

  - patches.fixes/mptspi-dv-renegotiate-oops: mptlinux     crashes on kernel 2.6.22 (bnc#271749).

Updated kernel packages that fix various security issues and several bugs are now available for Red Hat Enterprise Linux 3.

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 packages fix the following security issues :

* the absence of a protection mechanism when attempting to access a critical section of code has been found in the Linux kernel open file descriptors control mechanism, fcntl. This could allow a local unprivileged user to simultaneously execute code, which would otherwise be protected against parallel execution. As well, a race condition when handling locks in the Linux kernel fcntl functionality, may have allowed a process belonging to a local unprivileged user to gain re-ordered access to the descriptor table. (CVE-2008-1669, Important)

* the absence of a protection mechanism when attempting to access a critical section of code, as well as a race condition, have been found in the Linux kernel file system event notifier, dnotify. This could allow a local unprivileged user to get inconsistent data, or to send arbitrary signals to arbitrary system processes. (CVE-2008-1375, Important)

Red Hat would like to thank Nick Piggin for responsibly disclosing the following issue :

* when accessing kernel memory locations, certain Linux kernel drivers registering a fault handler did not perform required range checks. A local unprivileged user could use this flaw to gain read or write access to arbitrary kernel memory, or possibly cause a kernel crash.
(CVE-2008-0007, Important)

* a flaw was found when performing asynchronous input or output operations on a FIFO special file. A local unprivileged user could use this flaw to cause a kernel panic. (CVE-2007-5001, Important)

* a flaw was found in the way core dump files were created. If a local user could 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)

* a buffer overflow was found in the Linux kernel ISDN subsystem. A local unprivileged user could use this flaw to cause a denial of service. (CVE-2007-6151, Moderate)

* a race condition found in the mincore system core could allow a local user to cause a denial of service (system hang). (CVE-2006-4814, Moderate)

* it was discovered that the Linux kernel handled string operations in the opposite way to the GNU Compiler Collection (GCC). This could allow a local unprivileged user to cause memory corruption.
(CVE-2008-1367, Low)

As well, these updated packages fix the following bugs :

* a bug, which caused long delays when unmounting mounts containing a large number of unused dentries, has been resolved.

* in the previous kernel packages, the kernel was unable to handle certain floating point instructions on Itanium(R) architectures.

* on certain Intel CPUs, the Translation Lookaside Buffer (TLB) was not flushed correctly, which caused machine check errors.

Red Hat Enterprise Linux 3 users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0508.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0233.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2008-0211.

ID	Name	Product	Family	Severity
67703	Oracle Linux 4 : kernel (ELSA-2008-0508)	Nessus	Oracle Linux Local Security Checks	high
67683	Oracle Linux 5 : kernel (ELSA-2008-0233)	Nessus	Oracle Linux Local Security Checks	high
67678	Oracle Linux 3 : kernel (ELSA-2008-0211)	Nessus	Oracle Linux Local Security Checks	high
60429	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
60395	Scientific Linux Security Update : kernel on SL5.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
60393	Scientific Linux Security Update : kernel on SL3.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	high
59128	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 5370)	Nessus	SuSE Local Security Checks	high
43681	CentOS 5 : kernel (CESA-2008:0233)	Nessus	CentOS Local Security Checks	high
40380	VMSA-2008-0011 : Updated ESX service console packages for Samba and vmnix	Nessus	VMware ESX Local Security Checks	high
33432	SuSE 10 Security Update : Linux kernel (ZYPP Patch Number 5375)	Nessus	SuSE Local Security Checks	high
33376	RHEL 4 : kernel (RHSA-2008:0508)	Nessus	Red Hat Local Security Checks	high
33365	CentOS 4 : kernel (CESA-2008:0508)	Nessus	CentOS Local Security Checks	high
33253	openSUSE 10 Security Update : kernel (kernel-5339)	Nessus	SuSE Local Security Checks	high
33252	openSUSE 10 Security Update : kernel (kernel-5336)	Nessus	SuSE Local Security Checks	high
32161	RHEL 5 : kernel (RHSA-2008:0233)	Nessus	Red Hat Local Security Checks	high
32160	RHEL 3 : kernel (RHSA-2008:0211)	Nessus	Red Hat Local Security Checks	high
32139	CentOS 3 : kernel (CESA-2008:0211)	Nessus	CentOS Local Security Checks	high
801453	CentOS RHSA-2008-0508 Security Check	Log Correlation Engine	Generic	high
801450	CentOS RHSA-2008-0233 Security Check	Log Correlation Engine	Generic	high
801449	CentOS RHSA-2008-0211 Security Check	Log Correlation Engine	Generic	high

Detections

Analytics

CVE-2008-1367

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high