GLSA 200710-07 Tk: Buffer overflow
Posted on: 10/08/2007 01:25 AM

A new security update has been released for Gentoo Linux - Tk: Buffer overflow. Here the announcement:

Gentoo Linux Security Advisory GLSA 200710-07
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Tk: Buffer overflow
Date: October 07, 2007
Bugs: #192539
ID: 200710-07

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A buffer overflow vulnerability has been discovered in Tk.

Background
==========

Tk is a toolkit for creating graphical user interfaces.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/tk lt; 8.4.15-r1 gt;= 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 "gt;=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



Printed from Linux Compatible (http://www.linuxcompatible.org/news/story/glsa_200710_07_tk_buffer_overflow.html)