A new security update has been released for Gentoo Linux - Sylpheed, Claws Mail: User-assisted remote execution of arbitrary code. Here the announcement:

Gentoo Linux Security Advisory GLSA 200710-29
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http://security.gentoo.org/
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Severity: Normal
Title: Sylpheed, Claws Mail: User-assisted remote execution of
arbitrary code
Date: October 25, 2007
Bugs: #190104
ID: 200710-29

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Synopsis
========

A format string error has been discovered in Sylpheed and Claws Mail,
potentially leading to the remote execution of arbitrary code.

Background
==========

Sylpheed and Claws Mail are two GTK based e-mail clients.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-client/sylpheed < 2.4.5 >= 2.4.5
2 mail-client/claws-mail < 3.0.0 >= 3.0.0
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

Ulf Harnhammar from Secunia Research discovered a format string error
in the inc_put_error() function in file src/inc.c.

Impact
======

A remote attacker could entice a user to connect to a malicious POP
server sending specially crafted replies, 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 Sylpheed users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/sylpheed-2.4.5"

All Claws Mail users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/claws-mail-3.0.0"

References
==========

[ 1 ] CVE-2007-2958
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2958

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

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

http://security.gentoo.org/glsa/glsa-200710-29.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