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FKIE_CVE-2021-25218

Vulnerability from fkie_nvd - Published: 2021-08-18 19:15 - Updated: 2026-06-17 03:41
Summary
In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.
Impacted products
Vendor Product Version
isc bind 9.16.19
isc bind 9.17.16
isc bind 9.17.16
fedoraproject fedora 34

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "BIND9",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "Stable Branch 9.16.19"
            },
            {
              "status": "affected",
              "version": "Development Branch 9.17.16"
            },
            {
              "status": "affected",
              "version": "Supported Preview Edition 9.16.19-S1"
            }
          ]
        }
      ],
      "source": "security-officer@isc.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:isc:bind:9.16.19:*:*:*:-:*:*:*",
              "matchCriteriaId": "257443A7-F602-4043-A9B3-FAE11008FE87",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.17.16:*:*:*:-:*:*:*",
              "matchCriteriaId": "A72E883B-262D-4BF0-B09E-488AD1D3B4FF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:isc:bind:9.17.16:s1:*:*:supported_preview:*:*:*",
              "matchCriteriaId": "074CB7B7-FC62-4AAB-9155-F158C199231E",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
              "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition."
    },
    {
      "lang": "es",
      "value": "En BIND versiones 9.16.19, 9.17.16. Adem\u00e1s, la versi\u00f3n 9.16.19-S1 de BIND Supported Preview Edition. Cuando una versi\u00f3n vulnerable de named recibe una consulta en las circunstancias descritas anteriormente, el proceso named terminar\u00e1 debido a una comprobaci\u00f3n de aserci\u00f3n fallida. La vulnerabilidad s\u00f3lo afecta a versiones 9.16.19, 9.17.16 y 9.16.19-S1 de BIND Supported Preview Edition."
    }
  ],
  "id": "CVE-2021-25218",
  "lastModified": "2026-06-17T03:41:39.827",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "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": 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": "security-officer@isc.org",
        "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:3.1/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": "2021-08-18T19:15:07.333",
  "references": [
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/08/18/3"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/08/20/2"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/v1/docs/cve-2021-25218"
    },
    {
      "source": "security-officer@isc.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210909-0002/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/08/18/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2021/08/20/2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/v1/docs/cve-2021-25218"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210909-0002/"
    }
  ],
  "sourceIdentifier": "security-officer@isc.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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