Security advisory

{
  "id": "fb22a2ba7739a948b47ed9ac4aaa1d28faf813806038fbfa0dbbd9e40b7a45b9",
  "url": "https://osv.dev/vulnerability/CVE-2020-36646",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-36646",
    "summary": "A vulnerability classified as problematic has been found in MediaArea ZenLib up to 0.4.38. This affects the function Ztring::Date_From_Seconds_1970_Local of the file Source/ZenLib/Ztring.cpp. The manipulation of the argument Value leads to unchecked return value to null pointer dereference. Upgrading to version 0.4.39 is able to address this issue. The identifier of the patch is 6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408. It is recommended to upgrade the affected component. The identifier VDB-217629 was assigned to this vulnerability.",
    "evidence": "osv:CVE-2020-36646",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-36646",
      "aliases": [
        "CVE-2020-36646"
      ],
      "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/mediaarea/zenlib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "6baa8acdfc916b009103df9576fb9f296983f320"
                },
                {
                  "fixed": "13b9d3dbd2088390fbdccab32ae4560526389fbc"
                },
                {
                  "fixed": "6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mediaarea:zenlib:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.4.0"
                      },
                      {
                        "fixed": "0.4.39"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "13b9d3dbd2088390fbdccab32ae4560526389fbc"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.4.39"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36646.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-36646-53acf542",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "216455282241834777822508046971807982187",
                    "219881963054995498074394145370139099943",
                    "169627262917547243479898960874251878417",
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                    "299333476414009042506949598774173576686",
                    "111626969805281625372861334515573322871"
                  ]
                },
                "source": "https://github.com/mediaarea/zenlib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408",
                "target": {
                  "file": "Source/ZenLib/Ztring.cpp"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-36646-dd58f215",
                "digest": {
                  "length": 1496,
                  "function_hash": "209419881295467764464025019454422639936"
                },
                "source": "https://github.com/mediaarea/zenlib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408",
                "target": {
                  "file": "Source/ZenLib/Ztring.cpp",
                  "function": "Ztring::Date_From_Seconds_1970_Local"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:13:50Z"
          }
        }
      ],
      "modified": "2026-10-20T14:13:50.695989981Z",
      "provider": "osv",
      "references": [
        "https://github.com/MediaArea/ZenLib/releases/tag/v0.4.39",
        "https://vuldb.com/?ctiid.217629",
        "https://vuldb.com/?id.217629",
        "https://github.com/MediaArea/ZenLib/commit/6475fcccd37c9cf17e0cfe263b5fe0e2e47a8408",
        "https://github.com/MediaArea/ZenLib/pull/119"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-36646",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388728,
  "published_at": "2023-01-07T20:15:09.523+00:00"
}