Buffer overflow in the diagTasksWebSM command in IBM AIX 5.1, 5.2 and 5.3, might allow local users to execute arbitrary code via long command line arguments.
http://www.securityfocus.com/bid/13912
http://www.security-focus.com/advisories/8819
http://www.caughq.org/advisories/CAU-2005-0004.txt