Security advisory

{
  "id": "91abb3476c99ad75343bd04e1d2ee38732049dd9e9c2cf2b40413dc7d9ce284b",
  "url": "https://osv.dev/vulnerability/CVE-2016-20099",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2016-20099",
    "summary": "L-SMASH through 2.14.5 contains an infinite loop vulnerability in vc1_importer_probe() in importer/vc1_imp.c that allows attackers to hang applications via crafted input files. Attackers can supply a file consisting only of zero bytes, which lsmash_read_file() probes automatically, causing indefinite CPU consumption and denial of service.",
    "evidence": "osv:CVE-2016-20099",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2016-20099",
      "aliases": [
        "CVE-2016-20099"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/l-smash/l-smash",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "5b85a6bf9ca8924144bd3026b17355638a6b7430"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.14.5"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.14.5",
            "v2.9.1",
            "v2.3.0",
            "v1.13.27",
            "v1.13.2",
            "v1.13.0",
            "v1.12.3",
            "v1.11.15",
            "v1.11.8",
            "v1.11.7",
            "v1.9.1",
            "v1.5.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-20099.json"
          }
        }
      ],
      "modified": "2026-10-24T02:30:37.312187982Z",
      "provider": "osv",
      "references": [
        "https://github.com/l-smash/l-smash/blob/v2.14.5/importer/vc1_imp.c#L462-L488",
        "https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-free",
        "https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free",
        "https://www.vulncheck.com/advisories/l-smash-through-2.14.5-infinite-loop-in-vc-1-importer-probe",
        "https://github.com/l-smash/l-smash/pull/58"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2016-20099",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 428152,
  "published_at": "2026-10-14T15:16:58.003+00:00"
}