Integer underflow in the dns_name_fromtext function in (1) libdns_nonsecure.a and (2) libdns_secure.a in IBM AIX 5.2 allows local users to gain privileges via a crafted "-y" (TSIG key) command line argument to dig.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38169
http://www.vupen.com/english/advisories/2007/3669
http://www.securityfocus.com/bid/26262
http://www.ibm.com/support/docview.wss?uid=isg1IZ05017
http://securitytracker.com/id?1018871
http://secunia.com/advisories/27437
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=613