USN-2390-1: Pidgin vulnerabilities

28 October 2014

pidgin vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Pidgin.

Software Description

  • 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 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)

Update instructions

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

Ubuntu 14.10
libpurple0 - 1:2.10.9-0ubuntu7.1
pidgin - 1:2.10.9-0ubuntu7.1
Ubuntu 14.04 LTS
libpurple0 - 1:2.10.9-0ubuntu3.2
pidgin - 1:2.10.9-0ubuntu3.2
Ubuntu 12.04 LTS
libpurple0 - 1:2.10.3-0ubuntu1.6
pidgin - 1:2.10.3-0ubuntu1.6

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.

References