CVEvulnerability
CVE-2022-37797
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-09-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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 configurations
• lighttpd lighttpd 1.4.65
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List, Third Party Advisory
- https://redmine.lighttpd.net/issues/3165 Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202210-12 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5243 Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List, Third Party Advisory
- https://redmine.lighttpd.net/issues/3165 Exploit, Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202210-12 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5243 Mailing List, Third Party Advisory