{
  "GSD": {
    "alias": "CVE-2019-6469",
    "description": "An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition.",
    "id": "GSD-2019-6469"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-6469"
      ],
      "details": "An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition.",
      "id": "GSD-2019-6469",
      "modified": "2023-12-13T01:23:49.909668Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-officer@isc.org",
        "DATE_PUBLIC": "2019-05-29T23:00:00.000Z",
        "ID": "CVE-2019-6469",
        "STATE": "PUBLIC",
        "TITLE": "BIND Supported Preview Edition can exit with an assertion failure if ECS is in use"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "BIND 9 Supported Preview Edition",
                    "version": {
                      "version_data": [
                        {
                          "version_name": "BIND 9",
                          "version_value": "BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition."
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "ISC"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "ISC would like to thank Quad9 for reporting this issue."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.7"
      },
      "impact": {
        "cvss": {
          "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"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "An attacker who is able to cause a server to perform a query whose answer will be accompanied by malformed RRSIGs can deliberately cause a server to exit if it is using the recursive ECS feature."
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://kb.isc.org/docs/cve-2019-6469",
            "refsource": "CONFIRM",
            "url": "https://kb.isc.org/docs/cve-2019-6469"
          },
          {
            "name": "https://support.f5.com/csp/article/K39751401?utm_source=f5support\u0026amp;utm_medium=RSS",
            "refsource": "CONFIRM",
            "url": "https://support.f5.com/csp/article/K39751401?utm_source=f5support\u0026amp;utm_medium=RSS"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n\u003e=    BIND 9.11.7-S1\n"
        }
      ],
      "source": {
        "discovery": "USER"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "Only servers which have enabled the EDNS Client Subnet (ECS) feature can be affected by this defect; it can be prevented by disabling ECS options in the server\u0027s configuration."
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "ID": "CVE-2019-6469"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An error in the EDNS Client Subnet (ECS) feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 -\u003e 9.11.6-S1 of BIND 9 Supported Preview Edition."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-617"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/docs/cve-2019-6469",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://kb.isc.org/docs/cve-2019-6469"
            },
            {
              "name": "https://support.f5.com/csp/article/K39751401?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "tags": [],
              "url": "https://support.f5.com/csp/article/K39751401?utm_source=f5support\u0026amp;utm_medium=RSS"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2020-08-24T17:37Z",
      "publishedDate": "2019-10-09T16:15Z"
    }
  }
}