Novell Netware FTP server NWFTPD before 5.02r allows remote attackers to cause a denial of service (CPU consumption) via a connection to the server followed by a carriage return, and possibly other invalid commands with improper syntax or length.
http://www.securityfocus.com/bid/4693
http://www.iss.net/security_center/static/9034.php
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2962252.htm
http://online.securityfocus.com/archive/1/271589
http://archives.neohapsis.com/archives/vulnwatch/2002-q2/0059.html