Date: Sun, 09 Dec 2007 21:16:27 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200712-04 ] Cairo: User-assisted execution of arbitrary code
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Gentoo Linux Security Advisory GLSA 200712-04
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http://security.gentoo.org/
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Severity: Normal
Title: Cairo: User-assisted execution of arbitrary code
Date: December 09, 2007
Bugs: #200350
ID: 200712-04
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Synopsis
========
Multiple integer overflows were discovered in Cairo, possibly leading
to the execution of arbitrary code.
Background
==========
Cairo is a 2D vector graphics library with cross-device output support.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/cairo < 1.4.12 >= 1.4.12
Description
===========
Multiple integer overflows were reported, one of which Peter Valchev
(Google Security) found to be leading to a heap-based buffer overflow
in the cairo_image_surface_create_from_png() function that processes
PNG images.
Impact
======
A remote attacker could entice a user to view or process a specially
crafted PNG image file in an application linked against Cairo, possibly
leading to the execution of arbitrary code with the privileges of the
user running the application.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Cairo users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/cairo-1.4.12"
References
==========
[ 1 ] CVE-2007-5503
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5503
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200712-04.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
http://bugs.gentoo.org.
License
=======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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