Format string vulnerability in War FTP Daemon (warftpd) 1.82 RC 12 allows remote authenticated users to cause a denial of service (crash) via format string specifiers in a LIST command.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-5096
http://www.warftp.org/index.php?menu=338&cmd=show_article&article_id=1003
http://www.exploit-db.com/exploits/9622
http://archives.neohapsis.com/archives/bugtraq/2009-09/0105.html