Security advisory

{
  "id": "76a49cfb9dacb83e01309445a76647eb3b64cfba834de33fb90002231d2736fd",
  "url": "https://osv.dev/vulnerability/CVE-2021-32438",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32438",
    "summary": "The gf_media_export_filters function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.",
    "evidence": "osv:CVE-2021-32438",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-32438",
      "aliases": [
        "CVE-2021-32438"
      ],
      "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": "00194f5fe462123f70b0bae7987317b52898b868"
                }
              ],
              "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": "00194f5fe462123f70b0bae7987317b52898b868"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.1",
            "v1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32438.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-32438-2cf87496",
                "digest": {
                  "length": 10399,
                  "function_hash": "110411369548654099994106716865860766881"
                },
                "source": "https://github.com/gpac/gpac/commit/00194f5fe462123f70b0bae7987317b52898b868",
                "target": {
                  "file": "src/media_tools/media_export.c",
                  "function": "gf_media_export_filters"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-32438-704c91a5",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "276834135827962349594238480044194601543",
                    "104037118183956055809821158770854310676",
                    "142501862856768623737846352338915616287",
                    "97019427096313354470198072370138828492"
                  ]
                },
                "source": "https://github.com/gpac/gpac/commit/00194f5fe462123f70b0bae7987317b52898b868",
                "target": {
                  "file": "src/media_tools/media_export.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:23:43Z"
          }
        }
      ],
      "modified": "2026-10-20T14:23:43.294215881Z",
      "provider": "osv",
      "references": [
        "https://github.com/gpac/gpac/issues/1769",
        "https://github.com/gpac/gpac/commit/00194f5fe462123f70b0bae7987317b52898b868"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32438",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388883,
  "published_at": "2021-08-11T20:15:08.977+00:00"
}