Buffer overflow in the chcons (chcon) command in IBM AIX 5.2 and 5.3, when DEBUG MALLOC is enabled, might allow attackers to execute arbitrary code via a long command line argument.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5470
http://www.vupen.com/english/advisories/2005/2253
http://www.securityfocus.com/bid/15247
http://www-1.ibm.com/support/docview.wss?uid=isg1IY78253
http://www-1.ibm.com/support/docview.wss?uid=isg1IY78241
http://securitytracker.com/id?1015122