Vulnerability Details CVE-2022-37797
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 49.0%
CVSS Severity
CVSS v3 Score 7.5
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html
- https://redmine.lighttpd.net/issues/3165
- https://security.gentoo.org/glsa/202210-12
- https://www.debian.org/security/2022/dsa-5243
- https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html
- https://redmine.lighttpd.net/issues/3165
- https://security.gentoo.org/glsa/202210-12
- https://www.debian.org/security/2022/dsa-5243
Products affected by CVE-2022-37797
-
cpe:2.3:a:lighttpd:lighttpd:1.4.65
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cpe:2.3:o:debian:debian_linux:10.0