CVE-2020-27721

{"containers": {"cna": {"affected": [{"product": "BIG-IP GTM & DNS", "vendor": "n/a", "versions": [{"status": "affected", "version": "16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, 11.6.1-11.6.5.2"}]}], "descriptions": [{"lang": "en", "value": "In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response."}], "problemTypes": [{"descriptions": [{"description": "DoS", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-12-24T14:52:59.000Z", "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://support.f5.com/csp/article/K52035247"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "f5sirt@f5.com", "ID": "CVE-2020-27721", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BIG-IP GTM & DNS", "version": {"version_data": [{"version_value": "16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, 11.6.1-11.6.5.2"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "DoS"}]}]}, "references": {"reference_data": [{"name": "https://support.f5.com/csp/article/K52035247", "refsource": "MISC", "url": "https://support.f5.com/csp/article/K52035247"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:18:45.676Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.f5.com/csp/article/K52035247"}]}]}, "cveMetadata": {"assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "assignerShortName": "f5", "cveId": "CVE-2020-27721", "datePublished": "2020-12-24T14:52:59.000Z", "dateReserved": "2020-10-26T00:00:00.000Z", "dateUpdated": "2024-08-04T16:18:45.676Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "95CD946B-331A-44F5-8F64-26411E909F13", "versionEndExcluding": "14.1.3.1", "versionStartIncluding": "14.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "363C0C5C-A8EE-4BF9-92E3-506DA88D8CD3", "versionEndExcluding": "15.1.2", "versionStartIncluding": "15.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*", "matchCriteriaId": "B7466098-C689-4E4B-879F-0433A020FDBC", "versionEndExcluding": "16.0.1", "versionStartIncluding": "16.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "CD3D5803-35A0-4FF7-9AD3-E345C53A18FC", "versionEndIncluding": "11.6.5", "versionStartIncluding": "11.6.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB5007D0-BBDB-4D74-9C88-98FBA74757D1", "versionEndIncluding": "12.1.5", "versionStartIncluding": "12.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "FB07E847-6083-4CC8-8A62-6B9744B87088", "versionEndIncluding": "13.1.3", "versionStartIncluding": "13.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "AD6C7A28-1569-44B0-BE80-7472F5ED5059", "versionEndExcluding": "14.1.3.1", "versionStartIncluding": "14.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "AD2FDEB1-EB0E-4329-ABCF-A9FFF6FD0523", "versionEndExcluding": "15.1.2", "versionStartIncluding": "15.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB7047B3-A248-424C-98D8-A0DD99A86F50", "versionEndExcluding": "16.0.1", "versionStartIncluding": "16.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In versions 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, in a BIG-IP DNS / BIG-IP LTM GSLB deployment, under certain circumstances, the BIG-IP DNS system may stop using a BIG-IP LTM virtual server for DNS response."}, {"lang": "es", "value": "En las versiones 16.0.0-16.0.0.1, 15.1.0-15.1.1, 14.1.0-14.1.3, 13.1.0-13.1.3.5, 12.1.0-12.1.5.2 y 11.6.1-11.6.5.2 , en una implementaci\u00f3n de BIG-IP DNS / BIG-IP LTM GSLB, bajo determinadas circunstancias, el sistema BIG-IP DNS puede dejar de usar un servidor virtual BIG-IP LTM para la respuesta de DNS"}], "id": "CVE-2020-27721", "lastModified": "2026-06-17T03:09:31.397", "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}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-24T15:15:12.763", "references": [{"source": "f5sirt@f5.com", "tags": ["Vendor Advisory"], "url": "https://support.f5.com/csp/article/K52035247"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://support.f5.com/csp/article/K52035247"}], "sourceIdentifier": "f5sirt@f5.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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