{
  "schema_version": "1.4.0",
  "id": "GHSA-hxx9-636q-j4p5",
  "modified": "2023-01-11T03:30:20Z",
  "published": "2023-01-05T00:30:17Z",
  "aliases": [
    "CVE-2021-4300"
  ],
  "details": "A vulnerability has been found in ghostlander Halcyon and classified as critical. Affected by this vulnerability is the function CBlock::AddToBlockIndex of the file src/main.cpp of the component Block Verification. The manipulation leads to improper access controls. The attack can be launched remotely. Upgrading to version 1.1.1.0-hal is able to address this issue. The name of the patch is 0675b25ae9cc10b5fdc8ea3a32c642979762d45e. It is recommended to upgrade the affected component. The identifier VDB-217417 was assigned to this vulnerability.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4300"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ghostlander/Halcyon/commit/0675b25ae9cc10b5fdc8ea3a32c642979762d45e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ghostlander/Halcyon/releases/tag/v1.1.1.0-hal"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.217417"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.217417"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "severity": "CRITICAL",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-01-04T22:15:00Z"
  }
}