Unspecified vulnerability in AOL Instant Messenger (AIM) 5.9.3861 allows user-assisted remote attackers to cause a denial of service (client crash) and possibly execute arbitrary code by tricking the user into requesting Buddy Info about a long screen name, which might cause a buffer overflow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24362
http://www.securityfocus.com/archive/1/423920/100/0/threaded
http://www.securityfocus.com/archive/1/423906/100/0/threaded
http://archives.neohapsis.com/archives/fulldisclosure/2006-01/0948.html