USN-1273-1: Pidgin vulnerabilities
21 November 2011
Pidgin could be made to crash if it received specially crafted network traffic.
Releases
Packages
- pidgin - graphical multi-protocol instant messaging client for X
Details
Marius Wachtler discovered that Pidgin incorrectly handled malformed YMSG
messages in the Yahoo! protocol handler. A remote attacker could send a
specially crafted message and cause Pidgin to crash, leading to a denial
of service. This issue only affected Ubuntu 10.04 LTS and 10.10.
(CVE-2011-1091)
Marius Wachtler discovered that Pidgin incorrectly handled HTTP 100
responses in the MSN protocol handler. A remote attacker could send a
specially crafted message and cause Pidgin to crash, leading to a denial
of service. (CVE-2011-3184)
Diego Bauche Madero discovered that Pidgin incorrectly handled UTF-8
sequences in the SILC protocol handler. A remote attacker could send a
specially crafted message and cause Pidgin to crash, leading to a denial
of service. (CVE-2011-3594)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 11.04
Ubuntu 10.10
Ubuntu 10.04
After a standard system update you need to restart Pidgin to make
all the necessary changes.