high7.5
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.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Lighttpd | Lighttpd | Version 1.4.65 |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- 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