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Red Hat: RHSA-2010:0793-01 Critical: Kernel Security Enhancement

red hat
Calendar Grey October 25, 2010
Dist Redhat Esm H88
The security patches for the kernel in CentOS 7 focus on vulnerabilities considered critical due to potential privilege escalations.
Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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

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:
* The rds_page_copy_user() function in the Linux kernel Reliable Datagram Sockets (RDS) protocol implementation was missing sanity checks. A local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3904, Important)
Red Hat would like to thank Dan Rosenberg of Virtual Security Research 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 security update Red Hat privilege escalation important kernel RDS protocol

References

https://access.redhat.com/security/cve/CVE-2010-3904 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: kernel-2.6.18-194.17.4.el5.i686.rpm kernel-PAE-2.6.18-194.17.4.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-194.17.4.el5.i686.rpm kernel-PAE-devel-2.6.18-194.17.4.el5.i686.rpm kernel-debug-2.6.18-194.17.4.el5.i686.rpm kernel-debug-debuginfo-2.6.18-194.17.4.el5.i686.rpm kernel-debug-devel-2.6.18-194.17.4.el5.i686.rpm kernel-debuginfo-2.6.18-194.17.4.el5.i686.rpm kernel-debuginfo-common-2.6.18-194.17.4.el5.i686.rpm kernel-devel-2.6.18-194.17.4.el5.i686.rpm kernel-headers-2.6.18-194.17.4.el5.i386.rpm kernel-xen-2.6.18-194.17.4.el5.i686.rpm kernel-xen-debuginfo-2.6.18-194.17.4.el5.i686.rpm kernel-xen-devel-2.6.18-194.17.4.el5.i686.rpm
noarch: kernel-doc-2.6.18-194.17.4.el5.noarch.rpm
x86_64: kernel-2.6.18-194.17.4.el5.x86_64.rpm kernel-debug-2.6.18-194.17.4.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-194.17.4.el5.x86_64.rpm kernel-debug-devel-2.6.18-194.17.4.el5.x86_64.rpm kernel-debuginfo-2.6.18-194.17.4.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-194.17.4.el5.x86_64.rpm kernel-devel-2.6.18-194.17.4.el5.x86_64.rpm kernel-headers-2.6.18-194.17.4.el5.x86_64.rpm kernel-xen-2.6.18-194.17.4.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-194.17.4.el5.x86_64.rpm kernel-xen-devel-2.6.18-194.17.4.el5.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2010:0792-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0792.html
Issue date: 2010-10-25

Topic

Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat privilege escalation important kernel RDS protocol

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64

Bugs Fixed

642896 - CVE-2010-3904 RDS sockets local privilege escalation

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