Security advisory

{
  "id": "01df29242f62980d383ebd9dd71a08c59bf1e5a6772c67eacb1e0f40cf26a332",
  "url": "https://osv.dev/vulnerability/CVE-2021-32137",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32137",
    "summary": "Heap buffer overflow in the URL_GetProtocolType function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.",
    "evidence": "osv:CVE-2021-32137",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-32137",
      "aliases": [
        "CVE-2021-32137"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gpac/gpac",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "last_affected": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "fixed": "328def7d3b93847d64ecb6e9e0399684e57c3eca"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.0.1"
                      },
                      {
                        "last_affected": "1.0.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "328def7d3b93847d64ecb6e9e0399684e57c3eca"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.1",
            "v1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32137.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-32137-2e1c2167",
                "digest": {
                  "length": 826,
                  "function_hash": "284792179839374304082149816269135201397"
                },
                "source": "https://github.com/gpac/gpac/commit/328def7d3b93847d64ecb6e9e0399684e57c3eca",
                "target": {
                  "file": "src/isomedia/media.c",
                  "function": "Media_CheckDataEntry"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-32137-5b35e7ee",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "291249380859904332633641164920843666578",
                    "226897459076574812555870498271110113061",
                    "335433438652266364451620202234763074335",
                    "230842406680219397682270184490128442553",
                    "224490458383372915941042163679871284762",
                    "208175748052662061258604624397459148150",
                    "340234610476939007714845125844834320246"
                  ]
                },
                "source": "https://github.com/gpac/gpac/commit/328def7d3b93847d64ecb6e9e0399684e57c3eca",
                "target": {
                  "file": "src/isomedia/media.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:23:40Z"
          }
        }
      ],
      "modified": "2026-10-20T14:23:40.153602658Z",
      "provider": "osv",
      "references": [
        "https://github.com/gpac/gpac/commit/328def7d3b93847d64ecb6e9e0399684e57c3eca",
        "https://github.com/gpac/gpac/issues/1766"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32137",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388877,
  "published_at": "2021-09-13T14:15:09.64+00:00"
}