Buffer overflow in swcons in IBM AIX 5.3 allows local users to gain privileges via long input data.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32508
http://www.vupen.com/english/advisories/2007/0617
http://www.securitytracker.com/id?1017656
http://www-1.ibm.com/support/docview.wss?uid=isg1IY94901