Security advisory

{
  "id": "b5198045173d4c5c05dd7e47e11221c1a7fbc5b7d34abb59954ac9fe1ffb9828",
  "url": "https://osv.dev/vulnerability/CVE-2018-1000002",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1000002",
    "summary": "Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.",
    "evidence": "osv:CVE-2018-1000002",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2018-1000002",
      "aliases": [
        "CVE-2018-1000002"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cz-nic/knot-resolver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "bf4fd3145e68a1b8ab80dc62c9bbbf97943b4c83"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.5.1",
            "v1.5.0",
            "v1.4.0",
            "v1.3.3",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.6",
            "v1.2.1",
            "v1.2.0",
            "v1.2.0-rc3",
            "v1.2.0-rc2",
            "v1.2.0-rc1",
            "v1.1.1",
            "v1.1.0",
            "v1.0.0",
            "v1.0.0-beta3",
            "v1.0.0-beta2",
            "v1.0.0-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000002.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:05.846937984Z",
      "provider": "osv",
      "references": [
        "https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-1000002",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 440856,
  "published_at": "2018-01-22T18:29:00.227+00:00"
}