{
  "schema_version": "1.4.0",
  "id": "GHSA-w4h2-wcmm-4gwq",
  "modified": "2022-05-24T17:44:03Z",
  "published": "2022-05-24T17:44:03Z",
  "aliases": [
    "CVE-2020-1918"
  ],
  "details": "In-memory file operations (ie: using fopen on a data URI) did not properly restrict negative seeking, allowing for the reading of memory prior to the in-memory buffer. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.",
  "severity": [],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1918"
    },
    {
      "type": "WEB",
      "url": "https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca"
    },
    {
      "type": "WEB",
      "url": "https://hhvm.com/blog/2021/02/25/security-update.html"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-10T16:15:00Z"
  }
}