CVEvulnerability
CVE-2020-12244
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-05-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-347
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.
Affected configurations
• powerdns recursor (>= 4.1.0 <= 4.3.0)
• fedoraproject fedora 31
• fedoraproject fedora 32
• debian debian linux 10.0
• opensuse backports sle 15.0
• opensuse leap 15.1
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/19/3 Mailing List, Third Party Advisory
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ lists.fedoraproject.org
- https://www.debian.org/security/2020/dsa-4691 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/19/3 Mailing List, Third Party Advisory
- https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NMP72NJGKBWR5WEBXAWX5KSLQUDFTG6S/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PS4ZN5XGENYNFKX7QIIOUCQQHXE37GJF/ lists.fedoraproject.org
- https://www.debian.org/security/2020/dsa-4691 Third Party Advisory