vulnerability
Arch Linux: Denial of service (CVE-2018-14644)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Nov 9, 2018 | Jul 11, 2025 | Nov 27, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Nov 9, 2018
Added
Jul 11, 2025
Modified
Nov 27, 2025
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.
Solution
arch-linux-upgrade-latest
References
- CVE-2018-14644
- https://attackerkb.com/topics/CVE-2018-14644
- URL-https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644
- URL-https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-04.html
- URL-https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-06.html
- URL-https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html
- URL-https://security.archlinux.org/ASA-201811-13
- CWE-20
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