Heap-based buffer overflow in the boxelyRenderer module in the Personal Status Manager feature in ICQ 6.0 build 6043 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted personal status message.
https://exchange.xforce.ibmcloud.com/vulnerabilities/41852
http://www.vupen.com/english/advisories/2008/1299/references
http://www.securityfocus.com/archive/1/490921/100/0/threaded