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=========================================================== Ubuntu Security Notice USN-820-1 August 20, 2009 pidgin vulnerability CVE-2009-2694 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 8.04 LTS Ubuntu 8.10 Ubuntu 9.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.04 LTS: pidgin 1:2.4.1-1ubuntu2.6 Ubuntu 8.10: pidgin 1:2.5.2-0ubuntu1.4 Ubuntu 9.04: pidgin 1:2.5.5-1ubuntu8.4 After a standard system upgrade you need to restart Pidgin to effect the necessary changes. Details follow: Federico Muttis discovered that Pidgin did not properly handle certain malformed messages in the MSN protocol handler. A remote attacker could send a specially crafted message and possibly execute arbitrary code with user privileges.