IBM AIX 5.3, 6.1, 7.1, and 7.2 contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privileges. IBM APARs: IV88658, IV87981, IV88419, IV87640, IV88053.
https://www.exploit-db.com/exploits/40710/
http://www.securitytracker.com/id/1037256
http://www.securityfocus.com/bid/94090
http://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc