| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, 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 | 4.8.4-1 | fixed |
| sid, trixie | 4.9.1-3 | fixed |
The information below is based on the following data on fixed versions.
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