CVE-2016-7068

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This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour."}]}, "impact": {"cvss": [[{"vectorString": "5.3/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.0"}]]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20"}]}]}, "references": {"reference_data": [{"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068"}, {"name": "DSA-3764", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2017/dsa-3764"}, {"name": "DSA-3763", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2017/dsa-3763"}, {"name": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/", "refsource": "CONFIRM", "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T01:50:47.232Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068"}, {"name": "DSA-3764", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2017/dsa-3764"}, {"name": "DSA-3763", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2017/dsa-3763"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-7068", "datePublished": "2018-09-11T13:00:00.000Z", "dateReserved": "2016-08-23T00:00:00.000Z", "dateUpdated": "2024-08-06T01:50:47.232Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "pdns", "vendor": "Open-Xchange", "versions": [{"status": "affected", "version": "3.4.11"}, {"status": "affected", "version": "4.0.2"}, {"status": "affected", "version": "3.7.4"}, {"status": "affected", "version": "4.0.4"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*", "matchCriteriaId": "45749DBA-3089-4FD6-8999-9A6F0C3B4904", "versionEndExcluding": "3.4.11", "vulnerable": true}, {"criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*", "matchCriteriaId": "1DDAEFF5-B01E-4765-98F8-F00F80806118", "versionEndExcluding": "4.0.2", "versionStartIncluding": "4.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "matchCriteriaId": "0A95C8FD-FB1C-4AFF-84E8-B8BFAF678F31", "versionEndExcluding": "3.7.4", "vulnerable": true}, {"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "matchCriteriaId": "F07E82C1-0CEF-405D-8BE7-6918C64BABB2", "versionEndExcluding": "4.0.4", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour."}, {"lang": "es", "value": "Se ha descubierto un problema en PowerDNS en versiones anteriores a la 3.4.11 y 4.0.2, y PowerDNS recursor en versiones anteriores a la 3.7.4 y 4.0.4, que permite que un atacante no autenticado remoto provoque una carga de uso de CPU anormal en el servidor de PowerDNS mediante el env\u00edo de consultas DNS manipuladas, lo que podr\u00eda resultar en una denegaci\u00f3n de servicio (DoS) parcial si el sistema se sobrecarga. Este problema se basa en el hecho de que el servidor de PowerDNS analiza todos los registros presentes en una consulta, independientemente de si se necesitan o incluso si son leg\u00edtimos. Una consulta especialmente manipulada que contiene un gran n\u00famero de registros puede emplearse para aprovecharse de este comportamiento."}], "id": "CVE-2016-7068", "lastModified": "2026-06-17T00:52:31.983", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "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": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "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:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-09-11T13:29:00.713", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3763"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3764"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3763"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3764"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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