Buffer overflow in Serv-U ftp before 5.0.0.4 allows remote authenticated users to execute arbitrary code via a long time zone argument to the MDTM command.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15323
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-0330
http://www.securityfocus.com/bid/9751