USN-2390-1: Pidgin vulnerabilities

Ubuntu Security Notice USN-2390-1

28th 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 version:

Ubuntu 14.10:
pidgin

1:2.10.9-0ubuntu7.1
libpurple0

1:2.10.9-0ubuntu7.1
Ubuntu 14.04 LTS:
pidgin

1:2.10.9-0ubuntu3.2
libpurple0

1:2.10.9-0ubuntu3.2
Ubuntu 12.04 LTS:
pidgin

1:2.10.3-0ubuntu1.6
libpurple0

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

CVE-2014-3694,

CVE-2014-3695,

CVE-2014-3696,

CVE-2014-3698

Leave a Reply