GLSA 201612-37: Pixman: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	Pixman: Buffer overflow
Date:	12/13/2016
Bugs:	#561526
ID:	201612-37

Synopsis

A buffer overflow in Pixman might allow remote attackers to execute arbitrary code.

Background

Pixman is a pixel manipulation library.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
x11-libs/pixman	< 0.32.8	>= 0.32.8	All supported architectures

Description

In pixman-general, careless computations done with the ‘dest_buffer’ pointer may overflow, failing the buffer upper limit check.

Impact

A remote attacker could possibly cause a Denial of Service condition, or execute arbitrary code with the privileges of the process.

Workaround

There is no known workaround at this time.

Resolution

All Pixman users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=x11-libs/pixman-0.32.8"

References

Pixman 0.32.8 Release Notes

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201612-37.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.