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Gentoo Linux Security Advisory 201206-20

Gentoo Linux Security Advisory 201206-20
Posted Jun 24, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201206-20 - Multiple vulnerabilities in gdk-pixbuf may create a Denial of Service condition. Versions less than 2.24.1-r1 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2011-2485, CVE-2012-2370
SHA-256 | 5db196a5ac98312f0a60365cbddbb2bc9244f930a4a1ea66991c0aa66b31165c

Gentoo Linux Security Advisory 201206-20

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201206-20
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http://security.gentoo.org/
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Severity: Normal
Title: gdk-pixbuf: Denial of Service
Date: June 23, 2012
Bugs: #373999, #412033
ID: 201206-20

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Synopsis
========

Multiple vulnerabilities in gdk-pixbuf may create a Denial of Service
condition.

Background
==========

gdk-pixbuf is an image loading library for GTK+.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 x11-libs/gdk-pixbuf < 2.24.1-r1 >= 2.24.1-r1

Description
===========

Two vulnerabilities have been found in gdk-pixbuf:

* The "gdk_pixbuf__gif_image_load()" function in io-gif.c fails to
properly handle certain return values from subroutines
(CVE-2011-2485).
* The "read_bitmap_file_data()" function in io-xbm.c contains an
integer overflow error (CVE-2012-2370).

Impact
======

A remote attacker could entice a user to open a specially crafted image
in an application linked against gdk-pixbuf, possibly resulting in
Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All gdk-pixbuf users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/gdk-pixbuf-2.24.1-r1"

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

References
==========

[ 1 ] CVE-2011-2485
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2485
[ 2 ] CVE-2012-2370
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2370

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201206-20.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.

License
=======

Copyright 2012 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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