Faust Informatics FreeStyle Chat 4.1 SR2 MS-DOS Device Name - Denial of Service

source: https://www.securityfocus.com/bid/2777/info

A problem with the chat server makes it possible to deny service to legitmate users.

By submitting a request to the webserver including the 'AUX' MS-DOS device name, the webserver can be made to cease functioning.

The process has to be manually restarted to resume normal operation. 

http://www.server.com/aux