{"id":"ALPINE-CVE-2018-14644","details":"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.","modified":"2026-11-03T06:31:15.838222497Z","published":"2018-11-09T19:29:00.253Z","upstream":["CVE-2018-14644"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2018-14644"}],"affected":[{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.10","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.11","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.12","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.15","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/pdns-recursor?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.7-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2018-14644.json"}},{"package":{"name":"pdns-recursor","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