The web server for the SonicWALL SOHO firewall allows remote attackers to cause a denial of service via an empty GET or POST request.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-1083
http://archives.neohapsis.com/archives/bugtraq/2000-11/0439.html
http://archives.neohapsis.com/archives/bugtraq/2000-11/0435.html