Linux tmpwatch --fuser option allows local users to execute arbitrary commands by creating files whose names contain shell metacharacters.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5320
http://xforce.iss.net/alerts/advise64.php
http://www.securityfocus.com/bid/1785
http://www.redhat.com/support/errata/RHSA-2000-080.html
http://www.linux-mandrake.com/en/security/MDKSA-2000-056.php3?dis=7.1