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Gentoo Linux Security Advisory                           GLSA 201401-02
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                                            http://security.gentoo.org/
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 Severity: Low
    Title: Gajim: Information disclosure
     Date: January 06, 2014
     Bugs: #442860
       ID: 201401-02

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Synopsis
========

An error in Gajim causes invalid OpenSSL certificates to be accepted as
valid.

Background
==========

Gajim is a Jabber/XMPP client which uses GTK+.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-im/gajim               < 0.15.3-r1              >= 0.15.3-r1

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

The _ssl_verify_callback() function in tls_nb.py does not properly
validate SSL certificates, causing any certificate to be accepted as
valid as long as the root CA is valid.

Impact
======

A remote attacker might employ a specially crafted certificate to
conduct man-in-the-middle attacks on SSL connections and potentially
disclose sensitive information.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Gajim users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-im/gajim-0.15.3-r1"

References
==========

[ 1 ] CVE-2012-5524
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-5524

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

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

 http://security.gentoo.org/glsa/glsa-201401-02.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