Heap-use-after-free in JS_ReadObjectRec

{
  "id": "6a688f6b8ffd4ef336d053967a0075a8bbf4ff9eb8ba8f45dbf684f3b4fe867f",
  "url": "https://osv.dev/vulnerability/OSV-2020-1171",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Heap-use-after-free in JS_ReadObjectRec",
    "summary": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21532 ``` Crash type: Heap-use-after-free READ 4 Crash state: JS_ReadObjectRec JS_ReadObject fuzz_compile.c ```",
    "evidence": "osv:OSV-2020-1171",
    "products": [
      {
        "name": {
          "value": "quickjs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "20200316",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "OSV-2020-1171",
      "aliases": [
        "OSV-2020-1171"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/horhof/quickjs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5ae7ebbeecc4210e763ad76555571e3b31db6e24"
                },
                {
                  "fixed": "1bf1aba3af61529a282528c8c382b5f078cce63f"
                }
              ]
            }
          ],
          "package": {
            "name": "quickjs",
            "purl": "pkg:generic/quickjs",
            "ecosystem": "OSS-Fuzz"
          },
          "versions": [
            "20200316"
          ],
          "database_specific": {
            "source": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/quickjs/OSV-2020-1171.yaml"
          },
          "ecosystem_specific": {
            "severity": "HIGH",
            "introduced_range": "unknown:5ae7ebbeecc4210e763ad76555571e3b31db6e24"
          }
        }
      ],
      "modified": "2026-10-20T17:25:29.345338721Z",
      "provider": "osv",
      "references": [
        "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21532"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 389895,
  "published_at": "2020-07-22T21:49:53.004112+00:00"
}