Security advisory

{
  "id": "02eee0577043e1386d3d5e19b8abb0a5eae48b074c145978fb2d082ec444818e",
  "url": "https://osv.dev/vulnerability/CVE-2018-14403",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-14403",
    "summary": "MP4NameFirstMatches in mp4util.cpp in MP4v2 2.0.0 mishandles substrings of atom names, leading to use of an inappropriate data type for associated atoms. The resulting type confusion can cause out-of-bounds memory access.",
    "evidence": "osv:CVE-2018-14403",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-14403",
      "aliases": [
        "CVE-2018-14403"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/enzo1982/mp4v2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4b8649f491390ed86296769724facd1253c4ad4e"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "4b8649f491390ed86296769724facd1253c4ad4e"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.1.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.0.0",
            "v1.9.1",
            "v1.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-14403.json"
          }
        }
      ],
      "modified": "2026-10-24T10:47:37.779524298Z",
      "provider": "osv",
      "references": [
        "https://github.com/enzo1982/mp4v2/releases/tag/v2.1.0",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCHVOYPIBGM5HYUMQ77KZH2IHSITKVE/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRSO2IMK6P7MOIZWGWKONPIEHKBA7WL3/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GISUIWPKBWPXORUFNWBGFTKQS7UUVUC4/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:techsmith:mp4v2:2.0.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "techsmith:mp4v2",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.0.0"
                  },
                  {
                    "last_affected": "2.0.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-14403",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441416,
  "published_at": "2018-07-19T05:29:00.477+00:00"
}