High severity · published May 19, 2020
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…
7.5
CVSS
2.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
Backports Sle · Opensuse
15.0 · source: NVD
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
RE
Recursor · Powerdns
4.1.0 through 4.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12244
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12244
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00052.html
Mailing List
http://www.openwall.com/lists/oss-security/2020/05/19/3
Vendor Advisory
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2020-02.html
lists.fedoraproject.org
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/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4691
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