IBM AIX contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privileges.
https://www.exploit-db.com/exploits/40709/
http://www.securitytracker.com/id/1037030
http://www.securityfocus.com/bid/93605
http://aix.software.ibm.com/aix/efixes/security/lsmcode_advisory2.asc