[Full-disclosure] [ GLSA 200706-03 ] ELinks: User-assisted execution of arbitrary code

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200706-03
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: ELinks: User-assisted execution of arbitrary code
      Date: June 06, 2007
      Bugs: #177512
        ID: 200706-03

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Synopsis
========

A vulnerability has been discovered in ELinks allowing for the
user-assisted execution of arbitrary code.

Background
==========

ELinks is a text-mode web browser.

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

    -------------------------------------------------------------------
     Package            /   Vulnerable   /                  Unaffected
    -------------------------------------------------------------------
  1  www-client/elinks      < 0.11.2-r1                   >= 0.11.2-r1

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

Arnaud Giersch discovered that the "add_filename_to_string()" function
in file intl/gettext/loadmsgcat.c uses an untrusted relative path,
allowing for a format string attack with a malicious .po file.

Impact
======

A local attacker could entice a user to run ELinks in a specially
crafted directory environment containing a malicious ".po" file,
possibly resulting in the execution of arbitrary code with the
privileges of the user running ELinks.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ELinks users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-client/elinks-0.11.2-r1"

References
==========

  [ 1 ] CVE-2007-2027
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2027

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

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

  http://security.gentoo.org/glsa/glsa-200706-03.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 at 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
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