CVE-2022-37797

NameCVE-2022-37797
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3133-1, DSA-5243-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lighttpd (PTS)buster1.4.53-4+deb10u2vulnerable
buster (security)1.4.53-4+deb10u3fixed
bullseye1.4.59-1+deb11u1vulnerable
bullseye (security)1.4.59-1+deb11u2fixed
bookworm, sid1.4.67-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lighttpdsourcebuster1.4.53-4+deb10u3DLA-3133-1
lighttpdsourcebullseye1.4.59-1+deb11u2DSA-5243-1
lighttpdsource(unstable)1.4.66-1

Notes

https://redmine.lighttpd.net/issues/3165
https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/971773f1fae600074b46ef64f3ca1f76c227985f (lighttpd-1.4.66)

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