CVE-2022-40188

Name	CVE-2022-40188
Description	Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3139-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
knot-resolver (PTS)	bookworm, bookworm (security)	5.6.0-1+deb12u1	fixed
	trixie	5.7.5-1	fixed
	forky, sid	6.4.2-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
knot-resolver	source	buster	3.2.1-3+deb10u1		DLA-3139-1
knot-resolver	source	(unstable)	5.5.3-1

Notes

[bullseye] - knot-resolver <no-dsa> (Minor issue)
https://github.com/CZ-NIC/knot-resolver/commit/f6577a20e493c7fbdac124d7544bf1846b084185 (v5.5.3)
https://www.knot-resolver.cz/2022-09-21-knot-resolver-5.5.3.html