CVE-2018-14644

Source
Severity Medium
Remote Yes
Type Denial of service
Description
An issue has been found in PowerDNS Recursor before 4.1.5 where 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.
Group Package Affected Fixed Severity Status Ticket
AVG-805 powerdns-recursor 4.1.4-3 4.1.5-1 Medium Fixed
Date Advisory Group Package Severity Description
12 Nov 2018 ASA-201811-13 AVG-805 powerdns-recursor Medium denial of service
References
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html