shared/inc/sql/lists.php in Domain Technologie Control (DTC) before 0.34.1 allows remote authenticated users to execute arbitrary commands via shell metacharacters in mailing list tunable options.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=637477
http://www.openwall.com/lists/oss-security/2011/08/24/10
http://www.openwall.com/lists/oss-security/2011/08/13/1