{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-07-04T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-02-10T10:57:02.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "[oss-security] 20160706 Malicious primary DNS servers can crash secondaries", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"}, {"name": "91678", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/91678"}, {"name": "[dns-operations] 20160704 DNS activities in Japan", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"}, {"name": "[oss-security] 20160706 Re: Malicious primary DNS servers can crash secondaries", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T01:22:20.757Z"}, "title": "CVE Program Container", "references": [{"name": "[oss-security] 20160706 Malicious primary DNS servers can crash secondaries", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"}, {"name": "91678", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/91678"}, {"name": "[dns-operations] 20160704 DNS activities in Japan", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"}, {"name": "[oss-security] 20160706 Re: Malicious primary DNS servers can crash secondaries", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2016-6171", "datePublished": "2017-02-09T15:00:00.000Z", "dateReserved": "2016-07-06T00:00:00.000Z", "dateUpdated": "2024-08-06T01:22:20.757Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:knot-dns:knot_dns:*:*:*:*:*:*:*:*", "matchCriteriaId": "DF143712-8BD4-4D51-9256-22B796A8E072", "versionEndExcluding": "2.3.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Knot DNS before 2.3.0 allows remote DNS servers to cause a denial of service (memory exhaustion and slave server crash) via a large zone transfer for (1) DDNS, (2) AXFR, or (3) IXFR."}, {"lang": "es", "value": "Knot DNS en versiones anteriores a 2.3.0 permite a servidores DNS remotos provocar una denegaci\u00f3n de servicio (agotamiento de memoria y ca\u00edda del servidor esclavo) a trav\u00e9s de una transferencia de zona grande para (1) DDNS, (2) AXFR o (3) IXFR."}], "id": "CVE-2016-6171", "lastModified": "2026-05-13T00:24:29.033", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-02-09T15:59:01.190", "references": [{"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/91678"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"}, {"source": "secalert@redhat.com", "tags": ["Release Notes", "VDB Entry"], "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"}, {"source": "secalert@redhat.com", "tags": ["Technical Description"], "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/07/06/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/91678"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/sischkg/xfer-limit/blob/master/README.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "VDB Entry"], "url": "https://gitlab.labs.nic.cz/labs/knot/blob/c546a70563ef4c7badb7cb5bdf6d1ba8e7adae82/NEWS"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://gitlab.labs.nic.cz/labs/knot/issues/464"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Technical Description"], "url": "https://lists.dns-oarc.net/pipermail/dns-operations/2016-July/015058.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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