The web server for the SonicWALL SOHO firewall allows remote attackers to cause a denial of service via a long username in the authentication page.
https://exchange.xforce.ibmcloud.com/vulnerabilities/5596
http://www.securityfocus.com/bid/2013
http://archives.neohapsis.com/archives/bugtraq/2000-11/0435.html
http://archives.neohapsis.com/archives/bugtraq/2000-11/0406.html