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 X-Force ID: 134067.
https://exchange.xforce.ibmcloud.com/vulnerabilities/134067
http://www.securitytracker.com/id/1040330
http://aix.software.ibm.com/aix/efixes/security/suid_advisory.asc