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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: kernel security update
Advisory ID:       RHSA-2011:1418-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1418.html
Issue date:        2011-11-01
CVE Names:         CVE-2011-3209 
=====================================================================

1. Summary:

Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.3 Long Life.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5.3.LL server) - i386, ia64, noarch, x86_64

3. Description:

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

This update fixes the following security issue:

* A flaw was found in the Linux kernel's clock implementation on 32-bit,
SMP (symmetric multiprocessing) systems. A local, unprivileged user could
use this flaw to cause a divide error fault, resulting in a denial of
service. (CVE-2011-3209, Moderate)

Red Hat would like to thank Yasuaki Ishimatsu for reporting this issue.

Users should upgrade to these updated packages, which contain a backported
patch to correct this issue. The system must be rebooted for this update to
take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

To install kernel packages manually, use "rpm -ivh [package]". Do not
use "rpm -Uvh" as that will remove the running kernel binaries from
your system. You may use "rpm -e" to remove old kernels after
determining that the new kernel functions properly on your system.

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

732878 - CVE-2011-3209 kernel: panic occurs when clock_gettime() is called

6. Package List:

Red Hat Enterprise Linux (v. 5.3.LL server):

Source:
kernel-2.6.18-128.36.1.el5.src.rpm

i386:
kernel-2.6.18-128.36.1.el5.i686.rpm
kernel-PAE-2.6.18-128.36.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.36.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.36.1.el5.i686.rpm
kernel-debug-2.6.18-128.36.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.36.1.el5.i686.rpm
kernel-debug-devel-2.6.18-128.36.1.el5.i686.rpm
kernel-debuginfo-2.6.18-128.36.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.36.1.el5.i686.rpm
kernel-devel-2.6.18-128.36.1.el5.i686.rpm
kernel-headers-2.6.18-128.36.1.el5.i386.rpm
kernel-xen-2.6.18-128.36.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.36.1.el5.i686.rpm
kernel-xen-devel-2.6.18-128.36.1.el5.i686.rpm

ia64:
kernel-2.6.18-128.36.1.el5.ia64.rpm
kernel-debug-2.6.18-128.36.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-128.36.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-128.36.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-128.36.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-128.36.1.el5.ia64.rpm
kernel-devel-2.6.18-128.36.1.el5.ia64.rpm
kernel-headers-2.6.18-128.36.1.el5.ia64.rpm
kernel-xen-2.6.18-128.36.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-128.36.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-128.36.1.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-128.36.1.el5.noarch.rpm

x86_64:
kernel-2.6.18-128.36.1.el5.x86_64.rpm
kernel-debug-2.6.18-128.36.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.36.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.36.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.36.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.36.1.el5.x86_64.rpm
kernel-devel-2.6.18-128.36.1.el5.x86_64.rpm
kernel-headers-2.6.18-128.36.1.el5.x86_64.rpm
kernel-xen-2.6.18-128.36.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.36.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.36.1.el5.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-3209.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2011 Red Hat, Inc.
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