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Red Hat Linux 6.4 RHSA-2017:0196-01 Important Remote Execution Threat

red hat
Calendar Grey January 26, 2017
Scroller Redhat
Critical system patch released for Red Hat Enterprise Linux resolves a vulnerability related to memory corruption that could enable remote code execution.
An update for kernel is now available for Red Hat Enterprise Linux 6.4 Advanced Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* A use-after-free vulnerability was found in the kernel's socket recvmmsg subsystem. This may allow remote attackers to corrupt memory and may allow execution of arbitrary code. This corruption takes place during the error handling routines within __sys_recvmmsg() function. (CVE-2016-7117, Important)

Topics%20covered

Topics Covered

security advisory Red Hat kernel update memory corruption remote execution important

References

https://access.redhat.com/security/cve/CVE-2016-7117 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Server AUS (v. 6.4):
Source: kernel-2.6.32-358.76.1.el6.src.rpm
noarch: kernel-doc-2.6.32-358.76.1.el6.noarch.rpm kernel-firmware-2.6.32-358.76.1.el6.noarch.rpm
x86_64: kernel-2.6.32-358.76.1.el6.x86_64.rpm kernel-debug-2.6.32-358.76.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-358.76.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.76.1.el6.x86_64.rpm kernel-devel-2.6.32-358.76.1.el6.x86_64.rpm kernel-headers-2.6.32-358.76.1.el6.x86_64.rpm perf-2.6.32-358.76.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.4):
Source: kernel-2.6.32-358.76.1.el6.src.rpm
x86_64: kernel-debug-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.76.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.76.1.el6.x86_64.rpm python-perf-2.6.32-358.76.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.76.1.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
High
Critical

Advisory ID: RHSA-2017:0196-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:0196.html
Issue date: 2017-01-26

Topic

An update for kernel is now available for Red Hat Enterprise Linux 6.4Advanced Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update memory corruption remote execution important

Relevant Releases Architectures

Red Hat Enterprise Linux Server AUS (v. 6.4) - noarch, x86_64

Red Hat Enterprise Linux Server Optional AUS (v. 6.4) - x86_64

Bugs Fixed

1382268 - CVE-2016-7117 kernel: Use-after-free in the recvmmsg exit path

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