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Gajim: Information disclosure

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201401-02 / gajim
Release Date January 06, 2014
Latest Revision January 06, 2014: 1
Impact low
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-im/gajim < 0.15.3-r1 >= 0.15.3-r1 All supported architectures

Related bugreports: #442860

Synopsis

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

2.  Impact Information

Background

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

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Gajim users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4.  References



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Page updated January 06, 2014

Summary: This is a Gentoo Linux Security Advisory

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