vulnerability
Ubuntu: USN-7203-1 (CVE-2018-14644): PowerDNS vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Nov 9, 2018 | Jan 15, 2025 | Aug 18, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Nov 9, 2018
Added
Jan 15, 2025
Modified
Aug 18, 2025
Description
An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.
Solutions
ubuntu-pro-upgrade-pdns-recursorubuntu-pro-upgrade-pdns-serverubuntu-pro-upgrade-pdns-tools
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