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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2018-11-09T19:00:00

Updated: 2024-08-05T09:38:12.991Z

Reserved: 2018-07-27T00:00:00

Link: CVE-2018-14644

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-11-09T19:29:00.253

Modified: 2019-10-09T23:35:05.687

Link: CVE-2018-14644

cve-icon Redhat

No data.