Heap-buffer-overflow in Assimp::ObjFileImporter::createVertexArray

{
  "id": "890465f550bca3e0fe96f5b9b5916a512c48aed90281ee272fc58aacc7eaa132",
  "url": "https://osv.dev/vulnerability/OSV-2022-1258",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-buffer-overflow in Assimp::ObjFileImporter::createVertexArray",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54187 ``` Crash type: Heap-buffer-overflow WRITE 12 Crash state: Assimp::ObjFileImporter::createVertexArray Assimp::ObjFileImporter::createTopology Assimp::ObjFileImporter::createNodes ```",
    "evidence": "osv:OSV-2022-1258",
    "products": [
      {
        "name": {
          "value": "assimp",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.2.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.2.5",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2022-1258",
      "aliases": [
        "OSV-2022-1258"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/assimp/assimp.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "43763f53d6d794c524a4f9ba47809a83b8997c04"
                },
                {
                  "fixed": "628dde4a91a2abbc3f79c1c78bc4e537048bab90"
                },
                {
                  "fixed": "c22ddfda2bb1a24ad2edb4765239c03365fd7a20"
                },
                {
                  "fixed": "1538669f70e3c49449630e9f8e58d2d5f1e12291"
                }
              ]
            }
          ],
          "package": {
            "name": "assimp",
            "purl": "pkg:generic/assimp",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "5.2.0",
            "v5.2.0",
            "v5.2.1",
            "v5.2.2",
            "v5.2.3",
            "v5.2.4",
            "v5.2.5"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2022-1258.yaml"
          },
          "ecosystem_specific": {
            "severity": "HIGH"
          }
        }
      ],
      "modified": "2026-10-20T17:23:05.967584572Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=54187"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 389782,
  "published_at": "2022-12-11T13:02:16.977497+00:00"
}