OSSP shiela 1.1.5 and earlier allows remote authenticated users to execute arbitrary commands on the CVS server via shell metacharacters in a filename that is committed.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27978
http://www.vupen.com/english/advisories/2006/2986
http://www.sourcefire.com/services/advisories/sa072506.html
http://www.securityfocus.com/bid/19199
http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.014-shiela.html