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[ GLSA 201402-03 ] Pixman: User-assisted execution of arbitrary code
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GLSA
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PostPosted: Sun Feb 02, 2014 10:32 pm    Post subject: [ GLSA 201402-03 ] Pixman: User-assisted execution of arbitr Reply with quote

Gentoo Linux Security Advisory

Title: Pixman: User-assisted execution of arbitrary code (GLSA 201402-03)
Severity: normal
Exploitable: local, remote
Date: February 02, 2014
Bug(s): #493292
ID: 201402-03

Synopsis

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


Background

Pixman is a pixel manipulation library.

Affected Packages

Package: x11-libs/pixman
Vulnerable: < 0.32.4
Unaffected: >= 0.32.4
Architectures: All supported architectures


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.


Workaround

There is no known workaround at this time.

Resolution

All Pixman users should upgrade to the latest version:
Code:
# 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.


References

CVE-2013-6425


Last edited by GLSA on Thu Apr 17, 2014 4:33 am; edited 2 times in total
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