Multiple directory traversal vulnerabilities in AIX 5.3 ML03 allow local users to determine the existence of files and read partial contents of certain files via a .. (dot dot) in the argument to (1) getCommand.new (aka getCommand) and (2) getShell, a different vulnerability than CVE-2005-4273.
AIX 4.3.3 through AIX 5.1, when direct remote login is disabled, displays a different message if the password is correct, which allows remote attackers to guess the password via brute force methods.
Buffer overflow in the diagnostics library in AIX allows local users to "cause data and instructions to be overwritten" via a long DIAGNOSTICS environment variable.