CVE-2023-50387

{"id": "CVE-2023-50387", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2024-02-14T16:15:45.300", "references": [{"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2", "tags": ["Mailing List"], "source": "[email protected]"}, {"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3", "tags": ["Mailing List"], "source": "[email protected]"}, {"url": "https://access.redhat.com/security/cve/CVE-2023-50387", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823", "tags": ["Issue Tracking"], "source": "[email protected]"}, {"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1", "tags": ["Patch"], "source": "[email protected]"}, {"url": "https://kb.isc.org/docs/cve-2023-50387", "tags": ["Third Party Advisory", "VDB Entry"], "source": "[email protected]"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html", "source": "[email protected]"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/", "tags": ["Mailing List"], "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/", "tags": ["Mailing List"], "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/", "tags": ["Mailing List"], "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/", "source": "[email protected]"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/", "source": "[email protected]"}, {"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "[email protected]"}, {"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387", "tags": ["Patch", "Vendor Advisory"], "source": "[email protected]"}, {"url": "https://news.ycombinator.com/item?id=39367411", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://news.ycombinator.com/item?id=39372384", "tags": ["Issue Tracking"], "source": "[email protected]"}, {"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/", "tags": ["Vendor Advisory"], "source": "[email protected]"}, {"url": "https://security.netapp.com/advisory/ntap-20240307-0007/", "source": "[email protected]"}, {"url": "https://www.athene-center.de/aktuelles/key-trap", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.isc.org/blogs/2024-bind-security-release/", "tags": ["Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/", "tags": ["Press/Media Coverage", "Third Party Advisory"], "source": "[email protected]"}, {"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/", "tags": ["Patch", "Third Party Advisory"], "source": "[email protected]"}, {"url": "http://www.openwall.com/lists/oss-security/2024/02/16/2", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2024/02/16/3", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://access.redhat.com/security/cve/CVE-2023-50387", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823", "tags": ["Issue Tracking"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://kb.isc.org/docs/cve-2023-50387", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://news.ycombinator.com/item?id=39367411", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://news.ycombinator.com/item?id=39372384", "tags": ["Issue Tracking"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20240307-0007/", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.athene-center.de/aktuelles/key-trap", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf", "tags": ["Technical Description", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.isc.org/blogs/2024-bind-security-release/", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/", "tags": ["Press/Media Coverage", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-770"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \"KeyTrap\" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records."}, {"lang": "es", "value": "Ciertos aspectos DNSSEC del protocolo DNS (en RFC 4035 y RFC relacionados) permiten a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de una o m\u00e1s respuestas DNSSEC cuando hay una zona con muchos registros DNSKEY y RRSIG, tambi\u00e9n conocido como \"KeyTrap\". \" asunto. La especificaci\u00f3n del protocolo implica que un algoritmo debe evaluar todas las combinaciones de registros DNSKEY y RRSIG."}], "lastModified": "2025-11-04T19:16:14.237", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "vulnerable": true, "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "821614DD-37DD-44E2-A8A4-FE8D23A33C3C"}, {"criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75CCACE6-A0EE-4A6F-BD5A-7AA504B02717"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "964796B3-BA45-4180-A8DA-64CF93CED122", "versionEndExcluding": "2.90"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8A8328E8-C652-4262-8C00-D89AD8F75CCF", "versionEndExcluding": "5.71"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5207D316-7DC9-4724-BC48-C8D3EC5087E8", "versionEndExcluding": "4.8.6", "versionStartIncluding": "4.8.0"}, {"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FEE64451-7CB9-45BD-8168-9F48199A9363", "versionEndExcluding": "4.9.3", "versionStartIncluding": "4.9.0"}, {"criteria": "cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0526B76D-52BB-4FA1-B692-8EDEC673EAE5", "versionEndExcluding": "5.0.2", "versionStartIncluding": "5.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "F3814976-5223-4615-BA7B-E33083D3EC26", "versionEndIncluding": "9.16.46", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "140CCABA-F134-4CC2-9960-258D6BFF34DD", "versionEndIncluding": "9.18.22", "versionStartIncluding": "9.18.0"}, {"criteria": "cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "71BAD5BF-8532-4988-A772-6CD7B851E9E2", "versionEndIncluding": "9.19.20", "versionStartIncluding": "9.19.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nlnetlabs:unbound:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C094EEB-BAD6-495B-B1CB-671D31549F15", "versionEndExcluding": "1.19.1"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}