CVE-2022-37797
HIGH 7.5EPSS 2.5%
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.
- CVSS v3.1 NVD
- 7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 2.55% chance of exploitation in the next 30 days, 85th percentile
- Published
- 2022-09-12
- Updated
- 2024-08-03
Proof-of-concept exploits (1)
Security advisories
- https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html
- https://security.gentoo.org/glsa/202210-12
- https://www.debian.org/security/2022/dsa-5243