CVE-2019-3871

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{"affected": [{"affectedData": [{"product": "pdns", "vendor": "The PowerDNS Project", "versions": [{"status": "affected", "version": "4.1.7"}, {"status": "affected", "version": "4.0.7"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4F577C5-74AC-4207-AA9A-AEE24A3DC801", "versionEndExcluding": "4.0.7", "vulnerable": true}, {"criteria": "cpe:2.3:a:powerdns:authoritative_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "823B2EF0-94CF-4B5D-B699-50D25DCAE887", "versionEndExcluding": "4.1.7", "versionStartIncluding": "4.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*", "matchCriteriaId": "DC1BD7B7-6D88-42B8-878E-F1318CA5FCAF", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*", "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response"}, {"lang": "es", "value": "Se ha descubierto una vulnerabilidad en PowerDNS Authoritative Server, en versiones anteriores a la 4.0.7 y la 4.1.7. Una validaci\u00f3n de datos insuficiente de datos provenientes del usuario al construir una petici\u00f3n HTTP desde una consulta DNS en el conector HTTP del backend remoto permite que un usuario remoto provoque una denegaci\u00f3n de servicio haciendo que el servidor se conecte a un endpoint inv\u00e1lido. Adem\u00e1s, tambi\u00e9n podr\u00eda provocar una posible divulgaci\u00f3n de informaci\u00f3n haciendo que el servidor se conecte a un endpoint interno y, de alguna forma, extrayendo informaci\u00f3n importante sobre la respuesta."}], "id": "CVE-2019-3871", "lastModified": "2026-06-17T02:35:46.520", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-03-21T21:29:00.700", "references": [{"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html"}, 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[{"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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