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Arch Linux 201612-7 High: linux-lts Privilege Escalation Detected

Calendar Dec 06, 2016 • User Avatar LinuxSecurity Advisories
1 min read
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Topics Covered

security advisory high severity privilege escalation arch linux linux-lts
The package linux-lts before version 4.4.36-1 is vulnerable to privilege escalation. 
Arch Linux Security Advisory ASA-201612-7
========================================
Severity: High
Date    : 2016-12-06
CVE-ID  : CVE-2016-8655
Package : linux-lts
Type    : privilege escalation
Remote  : No
Link    : https://wiki.archlinux.org/title/CVE

Summary
======
The package linux-lts before version 4.4.36-1 is vulnerable to
privilege escalation.

Resolution
=========
Upgrade to 4.4.36-1.

# pacman -Syu "linux-lts>=4.4.36-1"

The problem has been fixed upstream but no release is available yet.

Workaround
=========
None.

Description
==========
Philip Pettersson discovered a race condition in the af_packet
implementation in the Linux kernel. A local unprivileged attacker could
use this to cause a denial of service (system crash) or run arbitrary
code with administrative privileges.

Impact
=====
A local unprivileged attacker is able to crash the system or run
arbitrary code with administrative privileges.

References
=========
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/
https://seclists.org/oss-sec/2016/q4/607
https://access.redhat.com/security/cve/CVE-2016-8655