Gaim 1.2.1 and earlier allows remote attackers to cause a denial of service (application crash) via a malformed MSN message.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10861
http://www.vupen.com/english/advisories/2005/0519
http://www.securityfocus.com/bid/13591
http://www.securityfocus.com/archive/1/426078/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2005-429.html
http://www.novell.com/linux/security/advisories/2005_36_sudo.html