[ GLSA 201401-02 ] Gajim: Information disclosure

[GLSA]

Gentoo Linux Security Advisory

Title: Gajim: Information disclosure (GLSA 201401-02)
Severity: low
Exploitable: remote
Date: January 06, 2014
Bug(s): #442860
ID: 201401-02

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: net-im/gajim
Vulnerable: < 0.15.3-r1
Unaffected: >= 0.15.3-r1
Architectures: All supported architectures


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: