Security advisory

{
  "id": "435adf15bd855c3a012d752432f230f865904a490f600b301a9c1f8b19e86873",
  "url": "https://osv.dev/vulnerability/CVE-2021-32272",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32272",
    "summary": "An issue was discovered in faad2 before 2.10.0. A heap-buffer-overflow exists in the function stszin located in mp4read.c. It allows an attacker to cause Code Execution.",
    "evidence": "osv:CVE-2021-32272",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-32272",
      "aliases": [
        "CVE-2021-32272"
      ],
      "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/knik0/faad2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f97f6e933a4ee3cf00b4e1ba4e3a1f05bc9de165"
                },
                {
                  "fixed": "1b71a6ba963d131375f5e489b3b25e36f19f3f24"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:faad2_project:faad2:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.10.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1b71a6ba963d131375f5e489b3b25e36f19f3f24"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2_9_2",
            "2_9_1",
            "2_9_0",
            "2_8_8",
            "2_8_7",
            "2_8_6",
            "2_8_5",
            "2_8_4",
            "2_8_3",
            "2_8_2",
            "2_8_1",
            "2_8_0",
            "FAAD2_2_7_1",
            "FAAD2_2_7",
            "FAAD2_2_5",
            "ver_2_0",
            "arelease"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32272.json",
            "vanir_signatures": [
              {
                "id": "CVE-2021-32272-2d26666e",
                "digest": {
                  "length": 656,
                  "function_hash": "91462948182982020859128384302487742294"
                },
                "source": "https://github.com/knik0/faad2/commit/1b71a6ba963d131375f5e489b3b25e36f19f3f24",
                "target": {
                  "file": "frontend/mp4read.c",
                  "function": "stszin"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2021-32272-e4e306c9",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "327116514384300148477453486440650707654",
                    "168372093800188031639950445655704535903",
                    "338288728775108395541123149893066390502"
                  ]
                },
                "source": "https://github.com/knik0/faad2/commit/1b71a6ba963d131375f5e489b3b25e36f19f3f24",
                "target": {
                  "file": "frontend/mp4read.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T14:02:42Z"
          }
        }
      ],
      "modified": "2026-10-20T14:02:42.772783531Z",
      "provider": "osv",
      "references": [
        "https://www.debian.org/security/2022/dsa-5109",
        "https://github.com/knik0/faad2/issues/57",
        "https://github.com/knik0/faad2/commit/1b71a6ba963d131375f5e489b3b25e36f19f3f24"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-32272",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388524,
  "published_at": "2021-09-20T16:15:10.143+00:00"
}