CVE-2018-14644

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{"affected": [{"affectedData": [{"product": "pdns", "vendor": "[UNKNOWN]", "versions": [{"status": "affected", "version": "4.0.9"}, {"status": "affected", "version": "4.1.5"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "matchCriteriaId": "8E865DFB-08E7-4EBE-B8E0-955314EE532D", "versionEndIncluding": "4.1.4", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Se ha encontrado un problema en PowerDNS Recursor desde la versi\u00f3n 4.0.0 hasta la versi\u00f3n 4.1.4 inclusive. Un atacante remoto que env\u00eda una consulta DNS para un metatipo como OPT puede provocar que una zona se almacene en cach\u00e9 err\u00f3neamente como validaci\u00f3n de DNSSEC fallida. Solo surge si la zona padre est\u00e1 firmada y todos los servidores autorizados para esa zona padre responden con FORMERR a una consulta de al menos uno de los metatipos. Como resultado, las consultas posteriores de los clientes que solicitan la validaci\u00f3n de DNSSEC se responder\u00e1n con un ServFail."}], "id": "CVE-2018-14644", "lastModified": "2026-06-17T01:41:21.630", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-11-09T19:29:00.253", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14644"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2018-07.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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