Security advisory

{
  "id": "c124af285d9f71a058264e4f45ba9c41c0b0bff43319efb6f8932c4d0fc9a193",
  "url": "https://osv.dev/vulnerability/CVE-2021-32136",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32136",
    "summary": "Heap buffer overflow in the print_udta 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-2021-32136",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-32136",
      "aliases": [
        "CVE-2021-32136"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gpac/gpac",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "last_affected": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "fixed": "eb71812fcc10e9c5348a5d1c61bd25b6fa06eaed"
                }
              ],
              "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": "eb71812fcc10e9c5348a5d1c61bd25b6fa06eaed"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.1",
            "v1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32136.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-32136-2f8d847d",
                "digest": {
                  "length": 1017,
                  "function_hash": "36863433897982644770268991010649461290"
                },
                "source": "https://github.com/gpac/gpac/commit/eb71812fcc10e9c5348a5d1c61bd25b6fa06eaed",
                "target": {
                  "file": "applications/mp4box/filedump.c",
                  "function": "print_udta"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-32136-4399feb0",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "58874632173463556490705745927249507885",
                    "254737507906734591712125367210705725677",
                    "210086047198344521558311930983177776831",
                    "86267620270954809777072179599581061051",
                    "40934953520414365288160210099305033374",
                    "209942547727856146407027009612221990987",
                    "158585693262689208580972187273282147750",
                    "273071986045586493816263364720787702890",
                    "128469750192360811734595297674734244483"
                  ]
                },
                "source": "https://github.com/gpac/gpac/commit/eb71812fcc10e9c5348a5d1c61bd25b6fa06eaed",
                "target": {
                  "file": "applications/mp4box/filedump.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:23:39Z"
          }
        }
      ],
      "modified": "2026-10-20T14:23:39.752166075Z",
      "provider": "osv",
      "references": [
        "https://github.com/gpac/gpac/commit/eb71812fcc10e9c5348a5d1c61bd25b6fa06eaed",
        "https://github.com/gpac/gpac/issues/1765"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32136",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388876,
  "published_at": "2021-09-13T13:15:07.36+00:00"
}