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USN-2390-1: Pidgin vulnerabilities

28 October 2014

Several security issues were fixed in Pidgin.

Releases

Packages

  • pidgin - graphical multi-protocol instant messaging client for X

Details

Jacob Appelbaum and an anonymous person discovered that Pidgin incorrectly
handled certificate validation. A remote attacker could exploit this to
perform a machine-in-the-middle attack to view sensitive information or alter
encrypted communications. (CVE-2014-3694)

Yves Younan and Richard Johnson discovered that Pidgin incorrectly handled
certain malformed MXit emoticons. A malicious remote server or a
machine-in-the-middle could use this issue to cause Pidgin to crash,
resulting in a denial of service. (CVE-2014-3695)

Yves Younan and Richard Johnson discovered that Pidgin incorrectly handled
certain malformed Groupwise messages. A malicious remote server or a
machine-in-the-middle could use this issue to cause Pidgin to crash,
resulting in a denial of service. (CVE-2014-3696)

Thijs Alkemade and Paul Aurich discovered that Pidgin incorrectly handled
memory when processing XMPP messages. A malicious remote server or user
could use this issue to cause Pidgin to disclosure arbitrary memory,
resulting in an information leak. (CVE-2014-3698)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04

After a standard system update you need to restart Pidgin to make all the
necessary changes.