Security advisory

{
  "id": "576a6be3e38a1f1f8a44fcf97ada517239b7437bca4a35ea2ee29d8694b8ffe9",
  "url": "https://osv.dev/vulnerability/CVE-2020-8618",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8618",
    "summary": "An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.",
    "evidence": "osv:CVE-2020-8618",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-8618",
      "aliases": [
        "CVE-2020-8618"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/isc-projects/bind9",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6270e602ea52209243475c4f1edbabe084e148f7"
                },
                {
                  "last_affected": "5ea41c14fb01966ba38ad96666168763c82fd767"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.16.0"
                      },
                      {
                        "last_affected": "9.16.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.16.3",
            "v9.16.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8618.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.isc.org/isc-projects/bind9",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6270e602ea52209243475c4f1edbabe084e148f7"
                },
                {
                  "last_affected": "5ea41c14fb01966ba38ad96666168763c82fd767"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.16.0"
                      },
                      {
                        "last_affected": "9.16.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.16.3",
            "v9.16.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8618.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:25.956874957Z",
      "provider": "osv",
      "references": [
        "https://kb.isc.org/docs/cve-2020-8618",
        "https://security.netapp.com/advisory/ntap-20200625-0003/",
        "https://usn.ubuntu.com/4399-1/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "20.04"
                  },
                  {
                    "last_affected": "20.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
              "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opensuse:leap",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "15.1"
                  },
                  {
                    "last_affected": "15.1"
                  },
                  {
                    "introduced": "15.2"
                  },
                  {
                    "last_affected": "15.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-8618",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431494,
  "published_at": "2020-06-17T22:15:12.977+00:00"
}