Security advisory

{
  "id": "3ef895c82978e2079b6cffb1a838a6a41076972817fcc3305dc76919267b3692",
  "url": "https://osv.dev/vulnerability/CVE-2017-12781",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-12781",
    "summary": "The EBML_BufferToID function in ebmlelement.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (Null pointer dereference and application crash) via a crafted mkv file.",
    "evidence": "osv:CVE-2017-12781",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-12781",
      "aliases": [
        "CVE-2017-12781"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/matroska-org/foundation-source",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d5bcb70f2a7b0da788cc844f19734a20489acc59"
                },
                {
                  "last_affected": "377eab34f9befa6846159f8a2176e054ce3e0ae6"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:matroska:mkclean:0.8.9:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.8.9"
                      },
                      {
                        "last_affected": "0.8.9"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:matroska:mkvalidator:0.5.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.5.1"
                      },
                      {
                        "last_affected": "0.5.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.5.1",
            "0.8.9",
            "mkvalidator-0.5.1",
            "mkclean-0.8.9-1",
            "mkclean-0.8.9"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12781.json"
          }
        }
      ],
      "modified": "2026-10-20T10:48:10.213911429Z",
      "provider": "osv",
      "references": [
        "https://github.com/Matroska-Org/foundation-source/issues/24"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:matroska:libebml2:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "matroska:libebml2",
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "2012-08-26"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-12781",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380112,
  "published_at": "2017-11-10T02:29:17.357+00:00"
}