{
  "schema_version": "1.4.0",
  "id": "GHSA-v4c8-84p4-cxv7",
  "modified": "2022-07-26T00:00:53Z",
  "published": "2022-05-24T22:28:58Z",
  "aliases": [
    "CVE-2021-21781"
  ],
  "details": "An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21781"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "severity": "LOW",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-18T15:15:00Z"
  }
}