CVE-2020-12244

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
VendorProductVersion
powerdnsrecursor
4.1.0 ≤
𝑥
≤ 4.3.0
debiandebian_linux
10.0
opensusebackports_sle
15.0:sp1
opensuseleap
15.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
pdns-recursor
bullseye
4.4.2-3
fixed
jessie
not-affected
bookworm
4.8.8-1
fixed
bookworm (security)
4.8.8-1
fixed
sid
5.0.9-1
fixed
trixie
5.0.9-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
pdns-recursor
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
needs-triage
eoan
ignored
bionic
needs-triage
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html
http://www.openwall.com/lists/oss-security/2020/05/19/3
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/
https://www.debian.org/security/2020/dsa-4691
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html
http://www.openwall.com/lists/oss-security/2020/05/19/3
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/
https://www.debian.org/security/2020/dsa-4691