Security advisory

{
  "id": "ca4592661e0bf2d8b797c7a394603c963bae853271ddea1e6ce128acccc0e62d",
  "url": "https://osv.dev/vulnerability/CVE-2019-12111",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-12111",
    "summary": "A Denial Of Service vulnerability in MiniUPnP MiniUPnPd through 2.1 exists due to a NULL pointer dereference in copyIPv6IfDifferent in pcpserver.c.",
    "evidence": "osv:CVE-2019-12111",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-12111",
      "aliases": [
        "CVE-2019-12111"
      ],
      "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/miniupnp/miniupnp",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "582375b64f347d6ef1a4dc3478ff3678ea923f80"
                },
                {
                  "fixed": "cb8a02af7a5677cf608e86d57ab04241cf34e24f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:miniupnp_project:miniupnpd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "cb8a02af7a5677cf608e86d57ab04241cf34e24f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "miniupnpd_2_1",
            "miniupnpc_2_1",
            "minissdpd_1_4",
            "miniupnpc_1_9",
            "miniupnpd_1_8",
            "miniupnpc_1_8",
            "miniupnpd_1_7",
            "minissdpd_1_2",
            "miniupnpc_1_7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12111.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-12111-212ad06f",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "107839460429687708715952341264957931301",
                    "303013143768086468867966637049142757548",
                    "206733185662940348058775997407128719315",
                    "112246521631798828958974842935225456498"
                  ]
                },
                "source": "https://github.com/miniupnp/miniupnp/commit/cb8a02af7a5677cf608e86d57ab04241cf34e24f",
                "target": {
                  "file": "miniupnpd/pcpserver.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-12111-e37ce8b5",
                "digest": {
                  "length": 139,
                  "function_hash": "42810451274363019698341505679653458935"
                },
                "source": "https://github.com/miniupnp/miniupnp/commit/cb8a02af7a5677cf608e86d57ab04241cf34e24f",
                "target": {
                  "file": "miniupnpd/pcpserver.c",
                  "function": "copyIPv6IfDifferent"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:27:18Z"
          }
        }
      ],
      "modified": "2026-10-20T13:27:18.868394579Z",
      "provider": "osv",
      "references": [
        "https://usn.ubuntu.com/4542-1/",
        "https://lists.debian.org/debian-lts-announce/2019/05/msg00045.html",
        "https://github.com/miniupnp/miniupnp/commit/cb8a02af7a5677cf608e86d57ab04241cf34e24f",
        "https://www.vdoo.com/blog/security-issues-discovered-in-miniupnp"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-12111",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387702,
  "published_at": "2019-05-15T23:29:00.933+00:00"
}