CVE-2007-4727

Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c
in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote
attackers to overwrite arbitrary CGI variables and execute arbitrary code
via an HTTP request with a long content length, as demonstrated by
overwriting the SCRIPT_FILENAME variable, aka a “header overflow.”