CVE-2018-14644

NameCVE-2018-14644
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
Debian Bugs913162

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pdns-recursor (PTS)jessie3.6.2-2+deb8u4vulnerable
jessie (security)3.6.2-2+deb8u3vulnerable
stretch (security), stretch4.0.4-1+deb9u3vulnerable
buster4.1.4-3vulnerable
sid4.1.7-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pdns-recursorsource(unstable)4.1.7-1913162

Notes

[jessie] - pdns-recursor <postponed> (Minor issue)
https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html
https://downloads.powerdns.com/patches/2018-07/

Search for package or bug name: Reporting problems