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).

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)

A race condition in the directory notification subsystem (dnotify) in Linux kernel 2.6.x before 2.6.24.6, and 2.6.25 before 2.6.25.1, allows local users to cause a denial of service (OOPS) and possibly gain privileges via unspecified vectors. (CVE-2008-1375)

The Linux kernel before 2.6.25.2 does not apply a certain protection mechanism for fcntl functionality, which allows local users to (1) execute code in parallel or (2) exploit a race condition to obtain re-ordered access to the descriptor table. (CVE-2008-1669)

Additionaly, the updated kernel for Mandriva Linux 2008.0 has bug fixes for sound on NEC S970 systems, an oops in module rt73, and the
-devel package fixes DKMS builds.

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

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

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.

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)

  - on AMD64 architectures, the possibility of a kernel     crash was discovered by testing the Linux kernel     process-trace ability. This could allow a local     unprivileged user to cause a denial of service (kernel     crash). (CVE-2008-1615, 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 possibility of a kernel crash was found in the Linux     kernel IPsec protocol implementation, due to improper     handling of fragmented ESP packets. When an attacker     controlling an intermediate router fragmented these     packets into very small pieces, it would cause a kernel     crash on the receiving node during packet reassembly.
    (CVE-2007-6282, Important)

  - a flaw in the MOXA serial driver could allow a local     unprivileged user to perform privileged operations, such     as replacing firmware. (CVE-2005-0504, Important)

As well, these updated packages fix the following bugs :

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

  - a kernel panic, due to inconsistent detection of AGP     aperture size, has been resolved.

  - a race condition in UNIX domain sockets may have caused     'recv()' to return zero. In clustered configurations,     this may have caused unexpected failovers.

  - to prevent link storms, network link carrier events were     delayed by up to one second, causing unnecessary packet     loss. Now, link carrier events are scheduled     immediately.

  - a client-side race on blocking locks caused large time     delays on NFS file systems.

  - in certain situations, the libATA sata_nv driver may     have sent commands with duplicate tags, which were     rejected by SATA devices. This may have caused infinite     reboots.

  - running the 'service network restart' command may have     caused networking to fail.

  - a bug in NFS caused cached information about directories     to be stored for too long, causing wrong attributes to     be read.

  - on systems with a large highmem/lowmem ratio, NFS write     performance may have been very slow when using small     files.

  - a bug, which caused network hangs when the system clock     was wrapped around zero, has been resolved.

Update to Linux kernel verion 2.6.25.1, 2.6.25.2, 2.6.25.3:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.1 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.2 http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.3 Security fixes: CVE-2008-1669 (2.6.25.2) - SMP ordering hole in fcntl_setlk() CVE-2008-2136 (2.6.25.3) - SIT exploitable remote memory leak CVE-2008-1375, CVE-2008-1675 were fixed in 2.6.25-12.fc9 and are available in GA version of kernel package shipped in Fedora 9. Bugs fixed: CIFS: fix slashes in path names to have proper format (#443681)

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.

From Red Hat Security Advisory 2008:0237 :

Updated kernel packages that fix various security issues and several bugs 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 :

* 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)

* on AMD64 architectures, the possibility of a kernel crash was discovered by testing the Linux kernel process-trace ability. This could allow a local unprivileged user to cause a denial of service (kernel crash). (CVE-2008-1615, 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 possibility of a kernel crash was found in the Linux kernel IPsec protocol implementation, due to improper handling of fragmented ESP packets. When an attacker controlling an intermediate router fragmented these packets into very small pieces, it would cause a kernel crash on the receiving node during packet reassembly.
(CVE-2007-6282, Important)

* a flaw in the MOXA serial driver could allow a local unprivileged user to perform privileged operations, such as replacing firmware.
(CVE-2005-0504, Important)

As well, these updated packages fix the following bugs :

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

* a kernel panic, due to inconsistent detection of AGP aperture size, has been resolved.

* a race condition in UNIX domain sockets may have caused 'recv()' to return zero. In clustered configurations, this may have caused unexpected failovers.

* to prevent link storms, network link carrier events were delayed by up to one second, causing unnecessary packet loss. Now, link carrier events are scheduled immediately.

* a client-side race on blocking locks caused large time delays on NFS file systems.

* in certain situations, the libATA sata_nv driver may have sent commands with duplicate tags, which were rejected by SATA devices.
This may have caused infinite reboots.

* running the 'service network restart' command may have caused networking to fail.

* a bug in NFS caused cached information about directories to be stored for too long, causing wrong attributes to be read.

* on systems with a large highmem/lowmem ratio, NFS write performance may have been very slow when using small files.

* a bug, which caused network hangs when the system clock was wrapped around zero, has been resolved.

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

It was discovered that PowerPC kernels did not correctly handle reporting certain system details. By requesting a specific set of information, a local attacker could cause a system crash resulting in a denial of service. (CVE-2007-6694)

A race condition was discovered between dnotify fcntl() and close() in the kernel. If a local attacker performed malicious dnotify requests, they could cause memory consumption leading to a denial of service, or possibly send arbitrary signals to any process. (CVE-2008-1375)

On SMP systems, a race condition existed in fcntl(). Local attackers could perform malicious locks, causing system crashes and leading to a denial of service. (CVE-2008-1669)

The tehuti network driver did not correctly handle certain IO functions. A local attacker could perform malicious requests to the driver, potentially accessing kernel memory, leading to privilege escalation or access to private system information. (CVE-2008-1675).

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
33252	openSUSE 10 Security Update : kernel (kernel-5336)	Nessus	SuSE Local Security Checks	2008/6/24	2021/1/14	high
33253	openSUSE 10 Security Update : kernel (kernel-5339)	Nessus	SuSE Local Security Checks	2008/6/24	2021/1/14	high
37544	Mandriva Linux Security Advisory : kernel (MDVSA-2008:104)	Nessus	Mandriva Local Security Checks	2009/4/23	2021/1/6	medium
43681	CentOS 5 : kernel (CESA-2008:0233)	Nessus	CentOS Local Security Checks	2010/1/6	2021/1/4	high
60394	Scientific Linux Security Update : kernel on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
32346	Fedora 9 : kernel-2.6.25.3-18.fc9 (2008-3949)	Nessus	Fedora Local Security Checks	2008/5/16	2021/1/11	high
67685	Oracle Linux 4 : kernel (ELSA-2008-0237)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/8/24	high
33093	Ubuntu 8.04 LTS : linux vulnerabilities (USN-614-1)	Nessus	Ubuntu Local Security Checks	2008/6/4	2021/1/19	high

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