A new security update has been released for Gentoo Linux - Tk: Buffer overflow. Here the announcement:
Gentoo Linux Security Advisory GLSA 200710-07
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http://security.gentoo.org/
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Severity: Normal
Title: Tk: Buffer overflow
Date: October 07, 2007
Bugs: #192539
ID: 200710-07
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Synopsis
========
A buffer overflow vulnerability has been discovered in Tk.
Background
==========
Tk is a toolkit for creating graphical user interfaces.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 dev-lang/tk < 8.4.15-r1 >= 8.4.15-r1
Description
===========
Reinhard Max discovered a boundary error in Tk when processing an
interlaced GIF with two frames where the second is smaller than the
first one.
Impact
======
A remote attacker could entice a user to open a specially crafted GIF
image with a Tk-based software, possibly resulting in the execution of
arbitrary code with the privileges of the user running the application.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Tk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/tk-8.4.15-r1"
References
==========
[ 1 ] CVE-2007-4851
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4851
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200710-07.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
