{
  "schema_version": "1.4.0",
  "id": "GHSA-67f6-6h83-3w53",
  "modified": "2022-05-24T19:05:29Z",
  "published": "2022-05-24T19:05:29Z",
  "aliases": [
    "CVE-2020-27339"
  ],
  "details": "An issue was discovered in IdeBusDxe in Insyde InsydeH2O 5.x. Code in system management mode calls a function outside of SMRAM in response to a crafted software SMI, aka Inclusion of Functionality from an Untrusted Control Sphere. Modifying the well-known address of this function allows an attacker to gain control of the system with the privileges of system management mode.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27339"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220216-0005"
    },
    {
      "type": "WEB",
      "url": "https://www.insyde.com/products"
    },
    {
      "type": "WEB",
      "url": "https://www.insyde.com/security-pledge/SA-2021001"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-16T16:15:00Z"
  }
}