Gentoo: Sylpheed, Sylpheed-claws Message reply overflow
Posted by Benjamin D. Thomas   
Gentoo Sylpheed and Sylpheed-claws contain a vulnerability that can be triggered when replying to specially crafted messages.
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Gentoo Linux Security Advisory                           GLSA 200503-26
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Sylpheed, Sylpheed-claws: Message reply overflow
      Date: March 20, 2005
      Bugs: #84056
        ID: 200503-26

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Synopsis
========

Sylpheed and Sylpheed-claws contain a vulnerability that can be
triggered when replying to specially crafted messages.

Background
==========

Sylpheed is a lightweight email client and newsreader. Sylpheed-claws
is a 'bleeding edge' version of Sylpheed.

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

    -------------------------------------------------------------------
     Package                     /  Vulnerable  /           Unaffected
    -------------------------------------------------------------------
  1  mail-client/sylpheed             < 1.0.3                 >= 1.0.3
  2  mail-client/sylpheed-claws       < 1.0.3                 >= 1.0.3
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Sylpheed and Sylpheed-claws fail to properly handle non-ASCII
characters in email headers when composing reply messages.

Impact
======

An attacker can send an email containing a malicious non-ASCII header
which, when replied to, would cause the program to crash, potentially
allowing the execution of arbitrary code with the privileges of the
user running the software.

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-1.0.3"

All Sylpheed-claws users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-client/sylpheed-claws-1.0.3"

References
==========

  [ 1 ] Sylpheed ChangeLog
        http://sylpheed.good-day.net/#changes
  [ 2 ] CAN-2005-0667
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0667

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

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

  http://security.gentoo.org/glsa/glsa-200503-26.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 2005 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/2.0