Heap-buffer-overflow in md_analyze_inlines

{
  "id": "29250387bb841c700cb522da93272b345d16ff14d190d9562d4c5c12a97ff9fd",
  "url": "https://osv.dev/vulnerability/OSV-2022-126",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-buffer-overflow in md_analyze_inlines",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44446 Crash type: Heap-buffer-overflow READ 1 Crash state: md_analyze_inlines md_process_normal_block_contents md_process_table_cell",
    "evidence": "osv:OSV-2022-126",
    "products": [
      {
        "name": {
          "value": "md4c",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "release-0.5.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "release-0.5.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "release-0.5.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "release-0.5.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v0.6.0",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2022-126",
      "aliases": [
        "OSV-2022-126"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mity/md4c",
              "type": "GIT",
              "events": [
                {
                  "introduced": "62b60979f6a281b2b3cf883abc84299431fe2f76"
                }
              ]
            }
          ],
          "package": {
            "name": "md4c",
            "purl": "pkg:generic/md4c",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "release-0.5.0",
            "release-0.5.1",
            "release-0.5.2",
            "release-0.5.3",
            "v0.6.0"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/md4c/OSV-2022-126.yaml"
          },
          "ecosystem_specific": {
            "severity": "MEDIUM"
          }
        }
      ],
      "modified": "2026-10-19T14:34:55.481645Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44446"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 375194,
  "published_at": "2022-02-07T00:00:05.720107+00:00"
}