lighttpd: mod_wstunnel does not initialize a handler function pointer if an invalid HTTP request (websocket handshake) is received (CVE-2022-37797)
4
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
09/12/2022
09/24/2024
09/19/2024
11/27/2024
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.
Solution(s)
- http-lighttpd-upgrade-latest
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