The kernel in HP-UX 11.11 does not properly provide arguments for setrlimit, which could allow local attackers to cause a denial of service (kernel panic) and possibly gain privileges.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5469
http://www.securityfocus.com/bid/4094
http://www.kb.cert.org/vuls/id/726187