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[RHSA-2008:0211-01] Important: kernel security and bug fix update

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2008:0211-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0211.html

Issue date: 2008-05-07

CVE Names: CVE-2006-4814 CVE-2007-5001 CVE-2007-6151

CVE-2007-6206 CVE-2008-0007 CVE-2008-1367

CVE-2008-1375 CVE-2008-1669

=====================================================================

 

1. Summary:

 

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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Desktop version 3 - i386, x86_64

Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

 

3. Description:

 

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® 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.

 

4. Solution:

 

Before applying this update, make sure that all previously-released

errata relevant to your system have been applied.

 

This update is available via Red Hat Network. Details on how to use

the Red Hat Network to apply this update are available at

http://kbase.redhat.com/faq/FAQ_58_10188

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

306971 - CVE-2006-4814 kernel Race condition in mincore can cause "ps -ef" to hang

326251 - CVE-2007-5001 kernel asynchronous IO on a FIFO kernel panic

396861 - CVE-2007-6206 Issue with core dump owner

413731 - RHEL3: System hangs at unmount

425111 - CVE-2007-6151 I4L: fix isdn_ioctl memory issue

428961 - CVE-2008-0007 kernel: insufficient range checks in fault handlers with mremap

437312 - CVE-2008-1367 Kernel doesn't clear DF for signal handlers

439754 - CVE-2008-1375 kernel: race condition in dnotify (local DoS, local roothole possible)

443433 - CVE-2008-1669 kernel: add rcu_read_lock() to fcheck() in both dnotify, locks.c and fix fcntl store/load race in locks.c

 

6. Package List:

 

Red Hat Enterprise Linux AS version 3:

 

Source:

ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/kernel-2.4.21-57.EL.src.rpm

 

i386:

kernel-2.4.21-57.EL.athlon.rpm

kernel-2.4.21-57.EL.i686.rpm

kernel-BOOT-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.athlon.rpm

kernel-debuginfo-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.i686.rpm

kernel-doc-2.4.21-57.EL.i386.rpm

kernel-hugemem-2.4.21-57.EL.i686.rpm

kernel-hugemem-unsupported-2.4.21-57.EL.i686.rpm

kernel-smp-2.4.21-57.EL.athlon.rpm

kernel-smp-2.4.21-57.EL.i686.rpm

kernel-smp-unsupported-2.4.21-57.EL.athlon.rpm

kernel-smp-unsupported-2.4.21-57.EL.i686.rpm

kernel-source-2.4.21-57.EL.i386.rpm

kernel-unsupported-2.4.21-57.EL.athlon.rpm

kernel-unsupported-2.4.21-57.EL.i686.rpm

 

ia64:

kernel-2.4.21-57.EL.ia64.rpm

kernel-debuginfo-2.4.21-57.EL.ia64.rpm

kernel-doc-2.4.21-57.EL.ia64.rpm

kernel-source-2.4.21-57.EL.ia64.rpm

kernel-unsupported-2.4.21-57.EL.ia64.rpm

 

ppc:

kernel-2.4.21-57.EL.ppc64iseries.rpm

kernel-2.4.21-57.EL.ppc64pseries.rpm

kernel-debuginfo-2.4.21-57.EL.ppc64.rpm

kernel-debuginfo-2.4.21-57.EL.ppc64iseries.rpm

kernel-debuginfo-2.4.21-57.EL.ppc64pseries.rpm

kernel-doc-2.4.21-57.EL.ppc64.rpm

kernel-source-2.4.21-57.EL.ppc64.rpm

kernel-unsupported-2.4.21-57.EL.ppc64iseries.rpm

kernel-unsupported-2.4.21-57.EL.ppc64pseries.rpm

 

s390:

kernel-2.4.21-57.EL.s390.rpm

kernel-debuginfo-2.4.21-57.EL.s390.rpm

kernel-doc-2.4.21-57.EL.s390.rpm

kernel-source-2.4.21-57.EL.s390.rpm

kernel-unsupported-2.4.21-57.EL.s390.rpm

 

s390x:

kernel-2.4.21-57.EL.s390x.rpm

kernel-debuginfo-2.4.21-57.EL.s390x.rpm

kernel-doc-2.4.21-57.EL.s390x.rpm

kernel-source-2.4.21-57.EL.s390x.rpm

kernel-unsupported-2.4.21-57.EL.s390x.rpm

 

x86_64:

kernel-2.4.21-57.EL.ia32e.rpm

kernel-2.4.21-57.EL.x86_64.rpm

kernel-debuginfo-2.4.21-57.EL.ia32e.rpm

kernel-debuginfo-2.4.21-57.EL.x86_64.rpm

kernel-doc-2.4.21-57.EL.x86_64.rpm

kernel-smp-2.4.21-57.EL.x86_64.rpm

kernel-smp-unsupported-2.4.21-57.EL.x86_64.rpm

kernel-source-2.4.21-57.EL.x86_64.rpm

kernel-unsupported-2.4.21-57.EL.ia32e.rpm

kernel-unsupported-2.4.21-57.EL.x86_64.rpm

 

Red Hat Desktop version 3:

 

Source:

ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/kernel-2.4.21-57.EL.src.rpm

 

i386:

kernel-2.4.21-57.EL.athlon.rpm

kernel-2.4.21-57.EL.i686.rpm

kernel-BOOT-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.athlon.rpm

kernel-debuginfo-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.i686.rpm

kernel-doc-2.4.21-57.EL.i386.rpm

kernel-hugemem-2.4.21-57.EL.i686.rpm

kernel-hugemem-unsupported-2.4.21-57.EL.i686.rpm

kernel-smp-2.4.21-57.EL.athlon.rpm

kernel-smp-2.4.21-57.EL.i686.rpm

kernel-smp-unsupported-2.4.21-57.EL.athlon.rpm

kernel-smp-unsupported-2.4.21-57.EL.i686.rpm

kernel-source-2.4.21-57.EL.i386.rpm

kernel-unsupported-2.4.21-57.EL.athlon.rpm

kernel-unsupported-2.4.21-57.EL.i686.rpm

 

x86_64:

kernel-2.4.21-57.EL.ia32e.rpm

kernel-2.4.21-57.EL.x86_64.rpm

kernel-debuginfo-2.4.21-57.EL.ia32e.rpm

kernel-debuginfo-2.4.21-57.EL.x86_64.rpm

kernel-doc-2.4.21-57.EL.x86_64.rpm

kernel-smp-2.4.21-57.EL.x86_64.rpm

kernel-smp-unsupported-2.4.21-57.EL.x86_64.rpm

kernel-source-2.4.21-57.EL.x86_64.rpm

kernel-unsupported-2.4.21-57.EL.ia32e.rpm

kernel-unsupported-2.4.21-57.EL.x86_64.rpm

 

Red Hat Enterprise Linux ES version 3:

 

Source:

ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/kernel-2.4.21-57.EL.src.rpm

 

i386:

kernel-2.4.21-57.EL.athlon.rpm

kernel-2.4.21-57.EL.i686.rpm

kernel-BOOT-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.athlon.rpm

kernel-debuginfo-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.i686.rpm

kernel-doc-2.4.21-57.EL.i386.rpm

kernel-hugemem-2.4.21-57.EL.i686.rpm

kernel-hugemem-unsupported-2.4.21-57.EL.i686.rpm

kernel-smp-2.4.21-57.EL.athlon.rpm

kernel-smp-2.4.21-57.EL.i686.rpm

kernel-smp-unsupported-2.4.21-57.EL.athlon.rpm

kernel-smp-unsupported-2.4.21-57.EL.i686.rpm

kernel-source-2.4.21-57.EL.i386.rpm

kernel-unsupported-2.4.21-57.EL.athlon.rpm

kernel-unsupported-2.4.21-57.EL.i686.rpm

 

ia64:

kernel-2.4.21-57.EL.ia64.rpm

kernel-debuginfo-2.4.21-57.EL.ia64.rpm

kernel-doc-2.4.21-57.EL.ia64.rpm

kernel-source-2.4.21-57.EL.ia64.rpm

kernel-unsupported-2.4.21-57.EL.ia64.rpm

 

x86_64:

kernel-2.4.21-57.EL.ia32e.rpm

kernel-2.4.21-57.EL.x86_64.rpm

kernel-debuginfo-2.4.21-57.EL.ia32e.rpm

kernel-debuginfo-2.4.21-57.EL.x86_64.rpm

kernel-doc-2.4.21-57.EL.x86_64.rpm

kernel-smp-2.4.21-57.EL.x86_64.rpm

kernel-smp-unsupported-2.4.21-57.EL.x86_64.rpm

kernel-source-2.4.21-57.EL.x86_64.rpm

kernel-unsupported-2.4.21-57.EL.ia32e.rpm

kernel-unsupported-2.4.21-57.EL.x86_64.rpm

 

Red Hat Enterprise Linux WS version 3:

 

Source:

ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/kernel-2.4.21-57.EL.src.rpm

 

i386:

kernel-2.4.21-57.EL.athlon.rpm

kernel-2.4.21-57.EL.i686.rpm

kernel-BOOT-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.athlon.rpm

kernel-debuginfo-2.4.21-57.EL.i386.rpm

kernel-debuginfo-2.4.21-57.EL.i686.rpm

kernel-doc-2.4.21-57.EL.i386.rpm

kernel-hugemem-2.4.21-57.EL.i686.rpm

kernel-hugemem-unsupported-2.4.21-57.EL.i686.rpm

kernel-smp-2.4.21-57.EL.athlon.rpm

kernel-smp-2.4.21-57.EL.i686.rpm

kernel-smp-unsupported-2.4.21-57.EL.athlon.rpm

kernel-smp-unsupported-2.4.21-57.EL.i686.rpm

kernel-source-2.4.21-57.EL.i386.rpm

kernel-unsupported-2.4.21-57.EL.athlon.rpm

kernel-unsupported-2.4.21-57.EL.i686.rpm

 

ia64:

kernel-2.4.21-57.EL.ia64.rpm

kernel-debuginfo-2.4.21-57.EL.ia64.rpm

kernel-doc-2.4.21-57.EL.ia64.rpm

kernel-source-2.4.21-57.EL.ia64.rpm

kernel-unsupported-2.4.21-57.EL.ia64.rpm

 

x86_64:

kernel-2.4.21-57.EL.ia32e.rpm

kernel-2.4.21-57.EL.x86_64.rpm

kernel-debuginfo-2.4.21-57.EL.ia32e.rpm

kernel-debuginfo-2.4.21-57.EL.x86_64.rpm

kernel-doc-2.4.21-57.EL.x86_64.rpm

kernel-smp-2.4.21-57.EL.x86_64.rpm

kernel-smp-unsupported-2.4.21-57.EL.x86_64.rpm

kernel-source-2.4.21-57.EL.x86_64.rpm

kernel-unsupported-2.4.21-57.EL.ia32e.rpm

kernel-unsupported-2.4.21-57.EL.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://www.redhat.com/security/team/key/#package

 

7. References:

 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4814

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5001

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6151

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6206

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0007

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1367

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1375

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1669

http://www.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://www.redhat.com/security/team/contact/

 

Copyright 2008 Red Hat, Inc.

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