HP Security Bulletin – A potential vulnerability has been identified with HP Jetdirect running ftp. The vulnerability could be exploited remotely to create a Denial of Service (DoS).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/53793/SSRT071290.txt
Source: https://packetstormsecurity.com/files/53793/HP-Security-Bulletin-2007-12.90.html