source: http://www.securityfocus.com/bid/7619/info

Snowblind Web Server has been reported prone to a buffer overflow vulnerability. The vulnerability exists when the web server attempts to process HTTP requests of excessive length.

Although unconfirmed, this vulnerability may be exploited to execute attacker-supplied code with the privileges of the vulnerable web server. 

GET /fff[ x 129 ]ffff HTTP/1.0