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.

Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably earlier, allows user-assisted remote attackers to write files to arbitrary locations via a .. (dot dot) in a filename in a file transfer operation.