Several security issues were fixed in Pidgin.
Jacob Appelbaum and an anonymous person discovered that Pidgin incorrectly handled certificate validation. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications. (CVE-2014-3694)
28 October 2014
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Pidgin.
Jacob Appelbaum and an anonymous person discovered that Pidgin incorrectly handled certificate validation. A remote attacker could exploit this to perform a man 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 man 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 man 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)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Pidgin to make all the necessary changes.
Vulmon