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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-Aug ust/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
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