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Linux Compatible » News » October 2004 » GLSA 200410-11: tiff: Buffer overflows in image decoding

GLSA 200410-11: tiff: Buffer overflows in image decoding

Posted by Philipp Esselbach on: 10/13/2004 03:03 PM [ Print | 0 comment(s) ]

A tiff security update is available for Gentoo Linux

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Gentoo Linux Security Advisory GLSA 200410-11
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http://security.gentoo.org/
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Severity: Normal
Title: tiff: Buffer overflows in image decoding
Date: October 13, 2004
ID: 200410-11

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Synopsis
=======

Multiple heap-based overflows have been found in the tiff library image decoding routines, potentially allowing to execute arbitrary code with the rights of the user viewing a malicious image.




Background
=========

The tiff library contains encoding and decoding routines for the Tag Image File Format. It is called by numerous programs, including GNOME and KDE, to help in displaying TIFF images. xv is a multi-format image manipulation utility that is statically linked to the tiff library.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/tiff < 3.6.1-r2 >= 3.6.1-r2
2 media-gfx/xv <= 3.10a-r7 >= 3.10a-r8
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

Description
==========

Chris Evans found heap-based overflows in RLE decoding routines in tif_next.c, tif_thunder.c and potentially tif_luv.c.

Impact
=====

A remote attacker could entice a user to view a carefully crafted TIFF image file, which would potentially lead to execution of arbitrary code with the rights of the user viewing the image. This affects any program that makes use of the tiff library, including GNOME and KDE web browsers or mail readers.

Workaround
=========

There is no known workaround at this time.

Resolution
=========

All tiff library users should upgrade to the latest version:

# emerge sync

# emerge -pv ">=media-libs/tiff-3.6.1-r2"
# emerge ">=media-libs/tiff-3.6.1-r2"

xv makes use of the tiff library and needs to be recompiled to receive the new patched version of the library. All xv users should also upgrade to the latest version:

# emerge sync

# emerge -pv ">=media-gfx/xv-3.10a-r8"
# emerge ">=media-gfx/xv-3.10a-r8"

References
=========

[ 1 ] CAN-2004-0803
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0803

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

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

http://security.gentoo.org/glsa/glsa-200410-11.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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