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Gentoo Linux Security Advisory 200705-13

Gentoo Linux Security Advisory 200705-13
Posted May 11, 2007
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200705-13 - iDefense Labs has discovered multiple integer overflows in ImageMagick in the functions ReadDCMImage() and ReadXWDImage(), that are used to process DCM and XWD files. Versions less than 6.3.3 are affected.

tags | advisory, overflow
systems | linux, gentoo
advisories | CVE-2007-1797
SHA-256 | 4b00eb3f21d36bc2732e635d2ac4b591b01b0967a343cf468344db2da2c66f6c

Gentoo Linux Security Advisory 200705-13

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Gentoo Linux Security Advisory GLSA 200705-13
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http://security.gentoo.org/
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Severity: Normal
Title: ImageMagick: Multiple buffer overflows
Date: May 10, 2007
Bugs: #159567, #173186
ID: 200705-13

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Synopsis
========

Multiple integer overflows have been discovered in ImageMagick allowing
for the execution of arbitrary code.

Background
==========

ImageMagick is a collection of tools allowing various manipulations on
image files.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-gfx/imagemagick < 6.3.3 >= 6.3.3

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

iDefense Labs has discovered multiple integer overflows in ImageMagick
in the functions ReadDCMImage() and ReadXWDImage(), that are used to
process DCM and XWD files.

Impact
======

An attacker could entice a user to open specially crafted XWD or DCM
file, resulting in heap-based buffer overflows and possibly the
execution of arbitrary code with the privileges of the user running
ImageMagick. Note that this user may be httpd or any other account used
by applications relying on the ImageMagick tools to automatically
process images.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ImageMagick users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/imagemagick-6.3.3"

References
==========

[ 1 ] CVE-2007-1797
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1797

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

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

http://security.gentoo.org/glsa/glsa-200705-13.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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