Vulnetix
Try Vulnetix Request Demo
CVE-2018-14644 PUBLISHED

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.

EPSS 0.02% · 5.2th percentile

Risk Scores

EPSS Score
0.02%
5.2th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:16.04:LTSpdns-recursor0, 3.7.3-1, 4.0.0~alpha1-1
Ubuntu:Pro:18.04:LTSpdns-recursor0, 4.0.6-1, 4.0.6-1build1

Timeline

References

Open in Interactive Console →