Heap-use-after-free in aiScene::~aiScene

{
  "id": "4448c176d949259f29c210ba8103c484e4a7d0aee8b800d5a95c1b74184780d2",
  "url": "https://osv.dev/vulnerability/OSV-2023-276",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-use-after-free in aiScene::~aiScene",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57656 ``` Crash type: Heap-use-after-free READ 8 Crash state: aiScene::~aiScene Assimp::BatchLoader::~BatchLoader Assimp::LWSImporter::InternReadFile ```",
    "evidence": "osv:OSV-2023-276",
    "products": [
      {
        "name": {
          "value": "assimp",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.2.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.1.6",
            "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"
          },
          {
            "value": "v5.3.0",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "v5.3.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "master",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2023-276",
      "aliases": [
        "OSV-2023-276"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/assimp/assimp.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "776130534bb66cb64c6f11b92a1375df9604ba83"
                },
                {
                  "fixed": "d03ab3ef276e4ee8fe4705100c3d1516eea338fc"
                },
                {
                  "introduced": "b40d9abdb978981b00536a62e9aeaaeccdc2dc51"
                }
              ]
            }
          ],
          "package": {
            "name": "assimp",
            "purl": "pkg:generic/assimp",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "5.2.0",
            "v5.1.6",
            "v5.2.0",
            "v5.2.1",
            "v5.2.2",
            "v5.2.3",
            "v5.2.4",
            "v5.2.5",
            "v5.3.0",
            "v5.3.1",
            "master"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/assimp/OSV-2023-276.yaml"
          },
          "ecosystem_specific": {
            "severity": "HIGH"
          }
        }
      ],
      "modified": "2026-10-20T17:23:05.965149999Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=57656"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 389781,
  "published_at": "2023-04-04T14:01:47.666563+00:00"
}