Security advisory

{
  "id": "620a85c4cda5f7646b5179fd24682e45d27983c55f810fcf92f608ece016e5ca",
  "url": "https://osv.dev/vulnerability/CVE-2019-6469",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-6469",
    "summary": "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 -> 9.11.6-S1 of BIND 9 Supported Preview Edition.",
    "evidence": "osv:CVE-2019-6469",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-6469",
      "aliases": [
        "CVE-2019-6469"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/isc-projects/bind9",
              "type": "GIT",
              "events": [
                {
                  "introduced": "341e64a2de908ceec50ed46d243bf3402342735c"
                },
                {
                  "last_affected": "eba38b89007f65bc6c1fdd2451034bbe3908b9a4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*",
                    "range": [
                      {
                        "introduced": "9.10.5-s1"
                      },
                      {
                        "last_affected": "9.10.5-s1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*",
                    "range": [
                      {
                        "introduced": "9.11.6-s1"
                      },
                      {
                        "last_affected": "9.11.6-s1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.10.5-s1",
            "9.11.6-s1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6469.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.isc.org/isc-projects/bind9",
              "type": "GIT",
              "events": [
                {
                  "introduced": "341e64a2de908ceec50ed46d243bf3402342735c"
                },
                {
                  "last_affected": "eba38b89007f65bc6c1fdd2451034bbe3908b9a4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:isc:bind:9.10.5:s1:*:*:supported_preview:*:*:*",
                    "range": [
                      {
                        "introduced": "9.10.5-s1"
                      },
                      {
                        "last_affected": "9.10.5-s1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*",
                    "range": [
                      {
                        "introduced": "9.11.6-s1"
                      },
                      {
                        "last_affected": "9.11.6-s1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.10.5-s1",
            "9.11.6-s1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6469.json"
          }
        }
      ],
      "modified": "2026-10-26T10:45:06.450420069Z",
      "provider": "osv",
      "references": [
        "https://support.f5.com/csp/article/K39751401?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://kb.isc.org/docs/cve-2019-6469"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-6469",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 450299,
  "published_at": "2019-10-09T16:15:17.077+00:00"
}