CVE-2019-6471 (GCVE-0-2019-6471)

Vulnerability from cvelistv5 – Published: 2019-10-09 14:17 – Updated: 2024-09-17 01:56
VLAI
Title
A race condition when discarding malformed packets can cause BIND to exit with an assertion failure
Summary
A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
Severity
5.9 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • An attacker who can cause a resolver to perform queries which will be answered by a server which responds with deliberately malformed answers can cause named to exit, denying service to clients.
Assigner
isc CNA under the mitre root
CNA scorecard A 95/100 over 33 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
ISC BIND 9 Affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
guessed Create a notification for this product.
Date Public
2019-06-19 00:00
Credits
ISC would like to thank CERN for helping us to discover this issue.
Show details on NVD website
To clipboard 

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                    "matchCriteriaId": "589511FF-F93F-4C54-B89B-B7228EA68F43",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:14.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D7BBEC67-BD2E-49D5-8294-977D975D98D0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:14.1.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C529A4BA-F1B7-4297-A9CC-2FF0EB2CB5AC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:15.0.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AA4AE425-1D86-4DB9-8B8F-74C6678BD528",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -\u003e 9.11.7, 9.12.0 -\u003e 9.12.4-P1, 9.14.0 -\u003e 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -\u003e 9.11.7-S1."
          },
          {
            "lang": "es",
            "value": "Una condici\u00f3n de carrera que puede presentarse al descartar paquetes malformados puede provocar la salida de BIND debido a un fallo de aserci\u00f3n de REQUIRE en el archivo dispatch.c. Versiones afectadas: BIND 9.11.0 hasta 9.11.7, 9.12.0 hasta 9.12.4-P1, 9.14.0 hasta 9.14.2. Tambi\u00e9n todas las versiones de la rama de desarrollo BIND 9.13 y la versi\u00f3n 9.15.0 de la rama de desarrollo BIND 9.15 y las versiones 9.11.3-S1 hasta 9.11.7-S1 de BIND Support Preview Edition."
          }
        ],
        "id": "CVE-2019-6471",
        "lastModified": "2024-11-21T04:46:30.843",
        "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
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "security-officer@isc.org",
              "type": "Secondary"
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2019-10-09T16:15:17.170",
        "references": [
          {
            "source": "security-officer@isc.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://kb.isc.org/docs/cve-2019-6471"
          },
          {
            "source": "security-officer@isc.org",
            "url": "https://support.f5.com/csp/article/K10092301?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://kb.isc.org/docs/cve-2019-6471"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://support.f5.com/csp/article/K10092301?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          }
        ],
        "sourceIdentifier": "security-officer@isc.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-362"
              },
              {
                "lang": "en",
                "value": "CWE-617"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T16:49:42+00:00",
      "cve": "CVE-2019-6471",
      "id": "CVE-2019-6471",
      "initial_release_date": "2019-06-19T00:00:00+00:00",
      "product_status:fixed": "242",
      "product_status:known_not_affected": "26",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "bind: Race condition when discarding malformed packets can cause bind to exit with assertion failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-6471.json",
      "version": "3"
    }
  }
}



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