Description
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.
Remediation
References
Related Vulnerabilities
WordPress Plugin BuddyPress Multiple Cross-Site Request Forgery Vulnerabilities (2.8.1)
WordPress Plugin Flat Preloader Cross-Site Scripting (1.5.4)
MediaWiki Improper Control of Generation of Code ('Code Injection') Vulnerability (CVE-2007-1055)
WordPress Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2015-5731)