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.
References
Link Resource
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
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2022-09-12T00:00:00

Updated: 2022-10-31T00:00:00

Reserved: 2022-08-08T00:00:00


Link: CVE-2022-37797

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2022-09-12T15:15:08.170

Modified: 2022-12-03T01:11:34.457


Link: CVE-2022-37797

JSON object: View

cve-icon Redhat Information

No data.

CWE