Security advisory

{
  "id": "54f7b4cc7a1973c6e4cf2d07d783ecdd0af8123e1d67990be59b1524f53dcce7",
  "url": "https://osv.dev/vulnerability/CVE-2021-33363",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-33363",
    "summary": "Memory leak in the infe_box_read function in MP4Box in GPAC 1.0.1 allows attackers to read memory via a crafted file.",
    "evidence": "osv:CVE-2021-33363",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-33363",
      "aliases": [
        "CVE-2021-33363"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gpac/gpac",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "last_affected": "d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"
                },
                {
                  "fixed": "ec64c7b8966d7e4642d12debb888be5acf18efb9"
                }
              ],
              "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": "ec64c7b8966d7e4642d12debb888be5acf18efb9"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.1",
            "v1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33363.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-33363-8a710907",
                "digest": {
                  "length": 1558,
                  "function_hash": "190621662993771390952759254767544999659"
                },
                "source": "https://github.com/gpac/gpac/commit/ec64c7b8966d7e4642d12debb888be5acf18efb9",
                "target": {
                  "file": "src/isomedia/box_code_meta.c",
                  "function": "infe_box_read"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-33363-93c1c670",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "181656743207928008313595382899266825553",
                    "14420871732517230207540520586412872457",
                    "278624330078857265765932513339803816499",
                    "231074979996065217382359061034165557310",
                    "325610805991539989549438125502161135907",
                    "276709810274072504270466193742067157565",
                    "277018454457004809969067120013534220047"
                  ]
                },
                "source": "https://github.com/gpac/gpac/commit/ec64c7b8966d7e4642d12debb888be5acf18efb9",
                "target": {
                  "file": "src/isomedia/box_code_meta.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:23:26Z"
          }
        }
      ],
      "modified": "2026-10-20T14:23:26.492727148Z",
      "provider": "osv",
      "references": [
        "https://www.debian.org/security/2023/dsa-5411",
        "https://github.com/gpac/gpac/commit/ec64c7b8966d7e4642d12debb888be5acf18efb9",
        "https://github.com/gpac/gpac/issues/1786"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-33363",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388861,
  "published_at": "2021-09-13T20:15:08.567+00:00"
}