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Gentoo Linux Security Advisory GLSA 200411-08
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http://security.gentoo.org/
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Severity: Normal
Title: GD: Integer overflow
Date: November 03, 2004
Bugs: #69070
ID: 200411-08
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Synopsis
========
The PNG image decoding routines in the GD library contain an integer
overflow that may allow execution of arbitrary code with the rights of
the program decoding a malicious PNG image.
Background
==========
The GD graphics library is an open source library which allows
programmers to easily generate PNG, JPEG, GIF and WBMP images from many
different programming languages.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/gd < 2.0.32 >= 2.0.32
Description
===========
infamous41md found an integer overflow in the memory allocation
procedure of the GD routine that handles loading PNG image files.
Impact
======
A remote attacker could entice a user to load a carefully crafted PNG
image file in a GD-powered application, or send a PNG image to a web
application which uses GD PNG decoding functions. This could
potentially lead to execution of arbitrary code with the rights of the
program loading the image.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All GD users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/gd-2.0.32"
References
==========
[ 1 ] Original BugTraq advisory
http://www.securityfocus.com/archive/1/379382
[ 2 ] CAN-2004-0990
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0990
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200411-08.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 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/1.0
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