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Gentoo Linux Security Advisory                           GLSA 201405-03
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: WeeChat: Multiple vulnerabilities
     Date: May 03, 2014
     Bugs: #442600
       ID: 201405-03

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Synopsis
========

Two vulnerabilities have been found in WeeChat, the worst of which may
allow execution of arbitrary code.

Background
==========

Wee Enhanced Environment for Chat (WeeChat) is a light and extensible
console IRC client.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-irc/weechat             < 0.3.9.2                 >= 0.3.9.2

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

Two vulnerabilities have been discovered in WeeChat:

* The hook_process() function does not properly handle shell expansions
  (CVE-2012-5534).
* WeeChat does not properly decode colors which could cause a
  heap-based buffer overflow (CVE-2012-5854).

Impact
======

A remote attacker could entice a user to open a specially crafted
script or send messages with specially crafted colors, possibly
resulting in execution of arbitrary code with the privileges of the
process, or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All WeeChat users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-irc/weechat-0.3.9.2"

References
==========

[ 1 ] CVE-2012-5534
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-5534
[ 2 ] CVE-2012-5854
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-5854

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

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

 http://security.gentoo.org/glsa/glsa-201405-03.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@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2014 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