ImageMagick, imlib, imlib2 security updates are available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200409-12
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http://security.gentoo.org/
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Severity: Normal
Title: ImageMagick, imlib, imlib2: BMP decoding buffer overflows
Date: September 08, 2004
Bugs: #62309, #62487
ID: 200409-12

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Synopsis
=======

ImageMagick, imlib and imlib2 contain exploitable buffer overflow vulnerabilities in the BMP image processing code.



Background
=========

ImageMagick is a suite of image manipulation utilities and libraries used for a wide variety of image formats. imlib is a general image loading and rendering library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/imagemagick < 6.0.7.1 >= 6.0.7.1
2 media-libs/imlib < 1.9.14-r2 >= 1.9.14-r2
3 media-libs/imlib2 < 1.1.2 >= 1.1.2
-------------------------------------------------------------------
3 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description
==========

Due to improper bounds checking, ImageMagick and imlib are vulnerable to a buffer overflow when decoding runlength-encoded bitmaps. This bug can be exploited using a specially-crafted BMP image and could potentially allow remote code execution when this image is decoded by the user.

Impact
=====

A specially-crafted runlength-encoded BMP could lead ImageMagick and imlib to crash or potentially execute arbitrary code.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All ImageMagick users should upgrade to the latest version:

# emerge sync

# emerge -pv ">=media-gfx/imagemagick-6.0.7.1"
# emerge ">=media-gfx/imagemagick-6.0.7.1"

All imlib users should upgrade to the latest version:

# emerge sync

# emerge -pv ">=media-libs/imlib-1.9.14-r2"
# emerge ">=media-libs/imlib-1.9.14-r2"

All imlib2 users should upgrade to the latest version:

# emerge sync

# emerge -pv ">=media-libs/imlib2-1.1.2"
# emerge ">=media-libs/imlib2-1.1.2"

References
=========

[ 1 ] CAN-2004-0817
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0817
[ 2 ] CAN-2004-0802
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0802
[ 3 ] ImageMagick Mailing List

http://studio.imagemagick.org/pipermail/magick-developers/2004-August/002011.html
[ 4 ] SecurityTracker #1011104
http://securitytracker.com/alerts/2004/Aug/1011104.html
[ 5 ] SecurityTracker #1011105
http://securitytracker.com/alerts/2004/Aug/1011105.html

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

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

http://security.gentoo.org/glsa/glsa-200409-12.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 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