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Pixman: User-assisted execution of arbitrary code

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201402-03 / pixman
Release Date February 02, 2014
Latest Revision February 02, 2014: 1
Impact normal
Exploitable local, remote
Package Vulnerable versions Unaffected versions Architecture(s)
x11-libs/pixman < 0.32.4 >= 0.32.4 All supported architectures

Related bugreports: #493292

Synopsis

An integer underflow vulnerability in Pixman may allow a context-dependent attacker to cause Denial of Service.

2.  Impact Information

Background

Pixman is a pixel manipulation library.

Description

The trapezoid handling code in Pixman contains an integer underflow vulnerability.

Impact

A context-dependent attacker could entice a user to open a specially crafted file using an application linked against Pixman, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Pixman users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=x11-libs/pixman-0.32.4"

Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying these packages.

4.  References



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Page updated February 02, 2014

Summary: This is a Gentoo Linux Security Advisory

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