Unspecified vulnerability in xlock in IBM AIX 5.2.0 and 5.3.0 allows local users to execute arbitrary commands and overwrite arbitrary files via unspecified vectors, possibly involving a buffer overflow.
ftp://aix.software.ibm.com/aix/efixes/security/README
secunia.com/advisories/22098
securitytracker.com/id?1016923
www-1.ibm.com/support/docview.wss?uid=isg1IY87894
www-1.ibm.com/support/docview.wss?uid=isg1IY87943
www.securityfocus.com/bid/20201
www.vupen.com/english/advisories/2006/3770
exchange.xforce.ibmcloud.com/vulnerabilities/29161