source: https://www.securityfocus.com/bid/3782/info Anti-Web HTTPD is a freely available, open source web server designed for use on the Linux platform. It is maintained by Doug Hoyte. Under certain circumstances awhttpd reacts unpredictably. When a script is executed that opens a file that does not exist, awhttpd still attempts to open the file. When awhttpd attempts to close the non-existing file following the completion of the script, it becomes unstable and crashes, resulting in a denial of service. a sample awhttpd script looks like this: # test.cgi --AWHTTPD SCRIPT-- echo "this is a test" F:test.html