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Red Hat: RHSA-2011-1418-01 Medium Severity: Kernel Denial of Service Issue

red hat
Calendar Grey November 1, 2011
Scroller Redhat
Revised kernel updates address significant security vulnerabilities for Red Hat Enterprise Linux 5.3. A system restart is necessary to apply the changes.
Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 5.3 Long Life

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate denial of service security update red hat kernel Linux kernel

References

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

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


Read the Full Advisory


Advisory ID: RHSA-2011:1418-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:1418.html
Issue date: 2011-11-01

Topic

Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 5.3 Long Life.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service security update red hat kernel Linux kernel

Relevant Releases Architectures

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

Bugs Fixed

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

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