In lighttpd 1.4.65, mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received. It leads to null pointer dereference which crashes the server. It could be used by an external attacker to cause denial of service condition. (CVE-2022-37797) A resource leak in mod_fastcgi and mod_scgi could lead to a denial of service after a large number of bad HTTP requests. (CVE-2022-41556)Read More