Vulnerability Monitor

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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.

Published

2022-09-12T15:15:08.170

Last Modified

2024-11-21T07:15:11.137

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-476

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lighttpd	lighttpd	1.4.65	Yes
Operating System	debian	debian_linux	10.0	Yes

References

https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List, Third Party Advisory ([email protected])
https://redmine.lighttpd.net/issues/3165 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202210-12 Third Party Advisory ([email protected])
https://www.debian.org/security/2022/dsa-5243 Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2022/10/msg00002.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://redmine.lighttpd.net/issues/3165 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202210-12 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2022/dsa-5243 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)