Heap-based buffer overflow in Cerulean Studios Trillian 3.x before 3.1.6.0 allows remote attackers to execute arbitrary code via a message sent through the MSN protocol, or possibly other protocols, with a crafted UTF-8 string, which triggers improper memory allocation for word wrapping when a window width is used as a buffer size, a different vulnerability than CVE-2007-2478.
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=545
http://secunia.com/advisories/25736
https://exchange.xforce.ibmcloud.com/vulnerabilities/34918
http://www.kb.cert.org/vuls/id/187033