osv-2026-611
Vulnerability from osv_ossfuzz
Published
2026-04-22 00:09
Modified
2026-04-22 00:09
Summary
Heap-buffer-overflow in ParseOpaqueMetadata
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128

Crash type: Heap-buffer-overflow READ 4
Crash state:
ParseOpaqueMetadata
ReadOpaqueInfo5
Mat_VarReadNextInfo5
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "introduced_range": "017180a9f75724c7fe90378362ab68beaa2426f2:65dca5fb5430340b065431b3568d01985b45c5ee"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "matio",
        "purl": "pkg:generic/matio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "a0210352e032d2fd78a8b228bb602db4bf78e897"
            },
            {
              "fixed": "070cd4b945e775f32cc4f090eb1808a78152b6b2"
            }
          ],
          "repo": "https://github.com/tbeu/matio.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128\n\n```\nCrash type: Heap-buffer-overflow READ 4\nCrash state:\nParseOpaqueMetadata\nReadOpaqueInfo5\nMat_VarReadNextInfo5\n```\n",
  "id": "OSV-2026-611",
  "modified": "2026-04-22T00:09:09.767978Z",
  "published": "2026-04-22T00:09:09.767586Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=504617128"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Heap-buffer-overflow in ParseOpaqueMetadata"
}


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