CVE-2023-50387 (GCVE-0-2023-50387)

Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20
VLAI?
Summary
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.
CWE
  • n/a
Assigner
References
https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advis…
https://www.theregister.com/2024/02/13/dnssec_vul…
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-c…
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releas…
https://lists.thekelleys.org.uk/pipermail/dnsmasq…
https://msrc.microsoft.com/update-guide/vulnerabi…
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PD…
http://www.openwall.com/lists/oss-security/2024/02/16/2 mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3 mailing-list
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.debian.org/debian-lts-announce/2024… mailing-list
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://security.netapp.com/advisory/ntap-2024030…
https://lists.debian.org/debian-lts-announce/2024… mailing-list
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-04T18:20:34.949Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.athene-center.de/aktuelles/key-trap"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://kb.isc.org/docs/cve-2023-50387"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://news.ycombinator.com/item?id=39367411"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.isc.org/blogs/2024-bind-security-release/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://news.ycombinator.com/item?id=39372384"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-50387"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
          },
          {
            "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
          },
          {
            "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
          },
          {
            "name": "FEDORA-2024-2e26eccfcb",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
          },
          {
            "name": "FEDORA-2024-e24211eff0",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
          },
          {
            "name": "FEDORA-2024-21310568fa",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
          },
          {
            "name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
          },
          {
            "name": "FEDORA-2024-b0f9656a76",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
          },
          {
            "name": "FEDORA-2024-4e36df9dfd",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
          },
          {
            "name": "FEDORA-2024-499b9be35f",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
          },
          {
            "name": "FEDORA-2024-c36c448396",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
          },
          {
            "name": "FEDORA-2024-c967c7d287",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
          },
          {
            "name": "FEDORA-2024-e00eceb11c",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
          },
          {
            "name": "FEDORA-2024-fae88b73eb",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
          },
          {
            "name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
          },
          {
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-50387",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-08T17:27:29.786375Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-12T15:02:17.822Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-10T16:14:16.780Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.athene-center.de/aktuelles/key-trap"
        },
        {
          "url": "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/"
        },
        {
          "url": "https://kb.isc.org/docs/cve-2023-50387"
        },
        {
          "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html"
        },
        {
          "url": "https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/"
        },
        {
          "url": "https://news.ycombinator.com/item?id=39367411"
        },
        {
          "url": "https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/"
        },
        {
          "url": "https://www.isc.org/blogs/2024-bind-security-release/"
        },
        {
          "url": "https://news.ycombinator.com/item?id=39372384"
        },
        {
          "url": "https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1"
        },
        {
          "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html"
        },
        {
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2023-50387"
        },
        {
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1219823"
        },
        {
          "url": "https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf"
        },
        {
          "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/02/16/2"
        },
        {
          "name": "[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2024/02/16/3"
        },
        {
          "name": "FEDORA-2024-2e26eccfcb",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/"
        },
        {
          "name": "FEDORA-2024-e24211eff0",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/"
        },
        {
          "name": "FEDORA-2024-21310568fa",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"
        },
        {
          "name": "[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html"
        },
        {
          "name": "FEDORA-2024-b0f9656a76",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/"
        },
        {
          "name": "FEDORA-2024-4e36df9dfd",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/"
        },
        {
          "name": "FEDORA-2024-499b9be35f",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/"
        },
        {
          "name": "FEDORA-2024-c36c448396",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/"
        },
        {
          "name": "FEDORA-2024-c967c7d287",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/"
        },
        {
          "name": "FEDORA-2024-e00eceb11c",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/"
        },
        {
          "name": "FEDORA-2024-fae88b73eb",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240307-0007/"
        },
        {
          "name": "[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-50387",
    "datePublished": "2024-02-14T00:00:00.000Z",
    "dateReserved": "2023-12-07T00:00:00.000Z",
    "dateUpdated": "2025-11-04T18:20:34.949Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.athene-center.de/aktuelles/key-trap\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://kb.isc.org/docs/cve-2023-50387\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://news.ycombinator.com/item?id=39367411\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.isc.org/blogs/2024-bind-security-release/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://news.ycombinator.com/item?id=39372384\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2023-50387\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://bugzilla.suse.com/show_bug.cgi?id=1219823\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/02/16/2\", \"name\": \"[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/02/16/3\", \"name\": \"[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/\", \"name\": \"FEDORA-2024-2e26eccfcb\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/\", \"name\": \"FEDORA-2024-e24211eff0\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/\", \"name\": \"FEDORA-2024-21310568fa\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html\", \"name\": \"[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/\", \"name\": \"FEDORA-2024-b0f9656a76\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/\", \"name\": \"FEDORA-2024-4e36df9dfd\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/\", \"name\": \"FEDORA-2024-499b9be35f\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/\", \"name\": \"FEDORA-2024-c36c448396\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/\", \"name\": \"FEDORA-2024-c967c7d287\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/\", \"name\": \"FEDORA-2024-e00eceb11c\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/\", \"name\": \"FEDORA-2024-fae88b73eb\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240307-0007/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html\", \"name\": \"[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/09/msg00001.html\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-04T18:20:34.949Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"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\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-50387\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-08T17:27:29.786375Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-770\", \"description\": \"CWE-770 Allocation of Resources Without Limits or Throttling\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-08T17:27:31.437Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://www.athene-center.de/aktuelles/key-trap\"}, {\"url\": \"https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/\"}, {\"url\": \"https://kb.isc.org/docs/cve-2023-50387\"}, {\"url\": \"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html\"}, {\"url\": \"https://www.theregister.com/2024/02/13/dnssec_vulnerability_internet/\"}, {\"url\": \"https://news.ycombinator.com/item?id=39367411\"}, {\"url\": \"https://www.securityweek.com/keytrap-dns-attack-could-disable-large-parts-of-internet-researchers/\"}, {\"url\": \"https://www.isc.org/blogs/2024-bind-security-release/\"}, {\"url\": \"https://news.ycombinator.com/item?id=39372384\"}, {\"url\": \"https://gitlab.nic.cz/knot/knot-resolver/-/releases/v5.7.1\"}, {\"url\": \"https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2024q1/017430.html\"}, {\"url\": \"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-50387\"}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2023-50387\"}, {\"url\": \"https://bugzilla.suse.com/show_bug.cgi?id=1219823\"}, {\"url\": \"https://www.athene-center.de/fileadmin/content/PDF/Technical_Report_KeyTrap.pdf\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/02/16/2\", \"name\": \"[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2024/02/16/3\", \"name\": \"[oss-security] 20240216 Re: Unbound: disclosure of CVE-2023-50387 and CVE-2023-50868 DNSSEC validation vulnerabilities\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVYA42BLXUCIDLD35YIJPJSHDIADNYMP/\", \"name\": \"FEDORA-2024-2e26eccfcb\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BUIP7T7Z4T3UHLXFWG6XIVDP4GYPD3AI/\", \"name\": \"FEDORA-2024-e24211eff0\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/\", \"name\": \"FEDORA-2024-21310568fa\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/02/msg00006.html\", \"name\": \"[debian-lts-announce] 20240221 [SECURITY] [DLA 3736-1] unbound security update\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TEXGOYGW7DBS3N2QSSQONZ4ENIRQEAPG/\", \"name\": \"FEDORA-2024-b0f9656a76\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQESRWMJCF4JEYJEAKLRM6CT55GLJAB7/\", \"name\": \"FEDORA-2024-4e36df9dfd\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/\", \"name\": \"FEDORA-2024-499b9be35f\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/\", \"name\": \"FEDORA-2024-c36c448396\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6FV5O347JTX7P5OZA6NGO4MKTXRXMKOZ/\", \"name\": \"FEDORA-2024-c967c7d287\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGSLGKUAQTW5JPPZCMF5YPEYALLRUZZ6/\", \"name\": \"FEDORA-2024-e00eceb11c\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/\", \"name\": \"FEDORA-2024-fae88b73eb\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240307-0007/\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/05/msg00011.html\", \"name\": \"[debian-lts-announce] 20240517 [SECURITY] [DLA 3816-1] bind9 security update\", \"tags\": [\"mailing-list\"]}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2024-06-10T16:14:16.780Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-50387\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-04T18:20:34.949Z\", \"dateReserved\": \"2023-12-07T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2024-02-14T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…