CVE-2020-12244

Name	CVE-2020-12244
Description	An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation.
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)
References	DSA-4691-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pdns-recursor (PTS)	buster, buster (security)	4.1.11-1+deb10u1	fixed
	bullseye	4.4.2-3	fixed
	bookworm, sid	4.8.2-1	fixed

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

Package	Type	Release	Fixed Version	Origin
pdns-recursor	source	jessie	(not affected)
pdns-recursor	source	buster	4.1.11-1+deb10u1	DSA-4691-1
pdns-recursor	source	(unstable)	4.3.1-1

Notes

[jessie] - pdns-recursor <not-affected> (Vulnerable code added later)
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html
https://www.openwall.com/lists/oss-security/2020/05/19/3