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Ubuntu Security Notice USN-2390-1
October 28, 2014
pidgin vulnerabilities
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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
After a standard system update you need to restart Pidgin to make all the
necessary changes.
References:
http://www.ubuntu.com/usn/usn-2390-1
CVE-2014-3694, CVE-2014-3695, CVE-2014-3696, CVE-2014-3698
Package Information:
https://launchpad.net/ubuntu/+source/pidgin/1:2.10.9-0ubuntu7.1
https://launchpad.net/ubuntu/+source/pidgin/1:2.10.9-0ubuntu3.2
https://launchpad.net/ubuntu/+source/pidgin/1:2.10.3-0ubuntu1.6
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