Security advisory

{
  "id": "056d039c8f300cda49274195c3c464b8a11d48707e7cd5ccff5dc4fdfe420dce",
  "url": "https://osv.dev/vulnerability/CVE-2016-9821",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-9821",
    "summary": "Integer overflow in libavcodec/mpegvideo_parser.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.",
    "evidence": "osv:CVE-2016-9821",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-9821",
      "aliases": [
        "CVE-2016-9821"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libav/libav",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3c3a0a06804e901cb9d6d94784a4ec8ecb8fe9e2"
                },
                {
                  "last_affected": "3c3a0a06804e901cb9d6d94784a4ec8ecb8fe9e2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "11.8"
                      },
                      {
                        "last_affected": "11.8"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "11.8",
            "v11.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9821.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:48.200403827Z",
      "provider": "osv",
      "references": [
        "https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-9821",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 436709,
  "published_at": "2017-03-01T15:59:00.477+00:00"
}