Fastream NETFile FTP / HTTP server version 6.5.1.980 is susceptible to a denial of service attack due to an inability to handle nonexistent user names.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33126/fastream.txt
Source: https://packetstormsecurity.com/files/33126/fastream.txt.html