Security advisory

{
  "id": "fc745a25d3f5b40333efc46ca35e2449fac179a30927fbdca71c51306fc21b50",
  "url": "https://osv.dev/vulnerability/CVE-2019-16225",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-16225",
    "summary": "An issue was discovered in py-lmdb 0.97. For certain values of mp_flags, mdb_page_touch does not properly set up mc->mc_pg[mc->top], leading to an invalid write operation. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.",
    "evidence": "osv:CVE-2019-16225",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-16225",
      "aliases": [
        "CVE-2019-16225",
        "GHSA-c74c-p4p7-r8q5",
        "PYSEC-2019-237"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jnwatson/py-lmdb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "2765beed9c72816d6ff4aa42bb25aa293a4c915e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:py-lmdb_project:py-lmdb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.97"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "py-lmdb_0.97",
            "py-lmdb_0.96",
            "py-lmdb_0.95",
            "py-lmdb_0.94",
            "py-lmdb_0.93",
            "py-lmdb_0.92",
            "py-lmdb_0.91",
            "py-lmdb_0.89",
            "py-lmdb_0.88",
            "py-lmdb_0.87",
            "py-lmdb_0.86",
            "py-lmdb_0.85",
            "py-lmdb_0.84",
            "py-lmdb_0.83",
            "py-lmdb_0.82",
            "py-lmdb_0.81",
            "py-lmdb_0.80",
            "py-lmdb_0.79",
            "py-lmdb_0.77",
            "py-lmdb_0.76",
            "py-lmdb_0.75",
            "py-lmdb_0.74",
            "py-lmdb_0.73",
            "py-lmdb_0.72",
            "py-lmdb_0.71",
            "py-lmdb_0.70",
            "py-lmdb_0.69",
            "py-lmdb_0.68",
            "py-lmdb_0.67",
            "py-lmdb_0.66",
            "py-lmdb_0.65",
            "py-lmdb_0.64",
            "py-lmdb_0.63",
            "py-lmdb_0.62",
            "py-lmdb_0.61",
            "py-lmdb_0.60",
            "py-lmdb_0.59",
            "py-lmdb_0.58",
            "py-lmdb_0.57",
            "py-lmdb_0.56",
            "py-lmdb_0.54",
            "py-lmdb_0.53",
            "py-lmdb_0.52",
            "py-lmdb_0.51",
            "py-lmdb_0.5",
            "last-cython-version",
            "py-lmdb_0.4",
            "py-lmdb_0.3",
            "py-lmdb_0.2",
            "py-lmdb_0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16225.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:17.694276590Z",
      "provider": "osv",
      "references": [
        "https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20write%20to%20illegal%20address"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-16225",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429618,
  "published_at": "2019-09-11T15:15:11.34+00:00"
}