Gentoo: dillo Format string vulnerability
Posted by Joe Shakespeare   
Gentoo Dillo is vulnerable to a format string bug, which may result in the execution of arbitrary code.

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Gentoo Linux Security Advisory                           GLSA 200501-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Dillo: Format string vulnerability
      Date: January 09, 2005
      Bugs: #76665
        ID: 200501-11

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Synopsis
========

Dillo is vulnerable to a format string bug, which may result in the
execution of arbitrary code.

Background
==========

Dillo is a small and fast multi-platform web browser based on GTK+.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  www-client/dillo     < 0.8.3-r4                       >= 0.8.3-r4

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

Gentoo Linux developer Tavis Ormandy found a format string bug in
Dillo's handling of messages in a_Interface_msg().

Impact
======

An attacker could craft a malicious web page which, when accessed using
Dillo, would trigger the format string vulnerability and potentially
execute arbitrary code with the rights of the user running Dillo.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Dillo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/dillo-0.8.3-r4"

References
==========

  [ 1 ] CAN-2005-0012
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0012

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

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

  http://security.gentoo.org/glsa/glsa-200501-11.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 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