medium5.3
CVE-2018-14644
An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Powerdns | Recursor | from 4.0.0 through 4.1.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html