CVE-2019-10191

Name	CVE-2019-10191
Description	A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.
Source	CVE (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)
Debian Bugs	932048

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
knot-resolver (PTS)	buster	3.2.1-3	vulnerable
	buster (security)	3.2.1-3+deb10u1	vulnerable
	bullseye	5.3.1-1+deb11u1	fixed
	bookworm, sid	5.6.0-1	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	(unstable)	5.0.1-1			932048

Notes

[buster] - knot-resolver <no-dsa> (Minor issue; can be fixed via point release)
https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html
https://gitlab.labs.nic.cz/knot/knot-resolver/merge_requests/839
https://www.openwall.com/lists/oss-security/2019/07/14/1