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Red Hat 6.2 RHSA-2014:1763-01 Important Security: Kernel Update

red hat
Calendar Grey October 30, 2014
Scroller Redhat Esm H88
Kernel security update available for Red Hat addressing important issues that could lead to system instability and escalated privileges.
Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 6.2 Advanced Update Support

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/articles/11258

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.
* A flaw was found in the way the Linux kernel's futex subsystem handled reference counting when requeuing futexes during futex_wait(). A local, unprivileged user could use this flaw to zero out the reference counter of an inode or an mm struct that backs up the memory area of the futex, which could lead to a use-after-free flaw, resulting in a system crash or, potentially, privilege escalation. (CVE-2014-0205)
* A NULL pointer dereference flaw was found in the way the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation handled simultaneous connections between the same hosts. A remote attacker could use this flaw to crash the system. (CVE-2014-5077)
The security impact of the CVE-2014-0205 issue was discovered by Mateusz Guzik of Red Hat.
All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update privilege escalation system crash important security fix

References

https://access.redhat.com/security/cve/CVE-2014-0205 https://access.redhat.com/security/cve/CVE-2014-5077 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AUS (v. 6.2 server):
Source: kernel-2.6.32-220.56.1.el6.src.rpm
noarch: kernel-doc-2.6.32-220.56.1.el6.noarch.rpm kernel-firmware-2.6.32-220.56.1.el6.noarch.rpm
x86_64: kernel-2.6.32-220.56.1.el6.x86_64.rpm kernel-debug-2.6.32-220.56.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.56.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.56.1.el6.x86_64.rpm kernel-devel-2.6.32-220.56.1.el6.x86_64.rpm kernel-headers-2.6.32-220.56.1.el6.x86_64.rpm perf-2.6.32-220.56.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.2):
Source: kernel-2.6.32-220.56.1.el6.src.rpm
x86_64: kernel-debug-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.56.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.56.1.el6.x86_64.rpm python-perf-2.6.32-220.56.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-220.56.1.el6.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/


Severity
important
Lowest
Low
Medium
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Critical

Advisory ID: RHSA-2014:1763-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1763.html
Issue date: 2014-10-30

Topic

Updated kernel packages that fix two security issues are now available forRed Hat Enterprise Linux 6.2 Advanced Update Support.Red Hat Product Security has rated this update as having Important securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update privilege escalation system crash important security fix

Relevant Releases Architectures

Red Hat Enterprise Linux AUS (v. 6.2 server) - noarch, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 6.2) - x86_64

Bugs Fixed

1094455 - CVE-2014-0205 kernel: futex: refcount issue in case of requeue

1122982 - CVE-2014-5077 Kernel: net: SCTP: fix a NULL pointer dereference during INIT collisions

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