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CVE-2022-37797

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.


Affected Package


OS OS Version Package Name Package Version
ubuntu upstream lighttpd 1.4.66-1
ubuntu 20.04 lighttpd any
ubuntu 22.04 lighttpd any
ubuntu upstream lighttpd any
ubuntu upstream lighttpd any

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