This script is Copyright (C) 2000-2011 Tenable Network Security, Inc.
The remote FTP server has a remote buffer overflow vulnerability.
It was possible to crash the remote FTP server by issuing a USER
command followed by a very long argument (over 16,000 characters).
This is likely due to a remote buffer overflow vulnerability. A
remote attacker could exploit this to crash the server, or possibly
execute arbitrary code.
Upgrade to the latest version of your FTP server.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.7
Public Exploit Available : true