CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion

{
  "id": "6fb7b766a7c49c93acf77833affb00e2dd8bb1b3e1a10ecc6baa3e55e178ea61",
  "url": "https://osv.dev/vulnerability/CVE-2025-58063",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion",
    "summary": "CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The `TTL()` function in `plugin/etcd/etcd.go` incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.",
    "evidence": "osv:CVE-2025-58063",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2025-58063",
      "aliases": [
        "CVE-2025-58063",
        "GHSA-93mf-426m-g6x9",
        "GO-2025-3942"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/coredns/coredns",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2e322f6e8a54f18c6aef9c25a7c432c291a3d9f7"
                },
                {
                  "fixed": "f32329577fd5e3fe19908f8a9ba5c76aafb45bf6"
                },
                {
                  "fixed": "e1768a5d272e9da649dfb8588595e5c6e4e640bf"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "fixed": "1.12.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "e1768a5d272e9da649dfb8588595e5c6e4e640bf"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.12.3",
            "v1.12.2",
            "v1.12.1",
            "v1.12.0",
            "v1.11.4",
            "v1.11.3",
            "v1.11.1",
            "v1.11.0",
            "v1.10.1",
            "v1.10.0",
            "v1.9.4",
            "v1.9.3",
            "v1.9.2",
            "v1.9.1",
            "v1.9.0",
            "v1.8.7",
            "v1.8.6",
            "v1.8.5",
            "v1.8.4",
            "v1.8.3",
            "v1.8.2",
            "v1.8.1",
            "v1.8.0",
            "v1.7.1",
            "v1.7.0",
            "v1.6.9",
            "v1.6.8",
            "v1.6.7",
            "v1.6.6",
            "v1.6.5",
            "v1.6.4",
            "v1.6.3",
            "v1.6.2",
            "v1.6.1",
            "v1.6.0",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.6",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.2.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-58063.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.446858189Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58063.json",
        "https://github.com/coredns/coredns/security/advisories/GHSA-93mf-426m-g6x9",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-58063",
        "https://github.com/coredns/coredns/commit/e1768a5d272e9da649dfb8588595e5c6e4e640bf"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-681"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/58xxx/CVE-2025-58063.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-58063",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499679,
  "published_at": "2025-09-09T19:27:18.124+00:00"
}