{
  "cveId": "CVE-2022-42309",
  "url": "https://patchblox.com/security/cve/CVE-2022-42309",
  "summary": "CVE-2022-42309 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-42309, released November 1, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "xen: Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use...",
  "description": "Xenstore: Guests can crash xenstored Due to a bug in the fix of XSA-115 a malicious guest can cause xenstored to use a wrong pointer during node creation in an error path, resulting in a crash of xenstored or a memory corruption in xenstored causing further damage. Entering the error path can be controlled by the guest e.g. by exceeding the quota value of maximum nodes per domain.",
  "published": "2022-11-01T13:15:11Z",
  "severity": "high",
  "cvss": 8.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss": 0.00302,
  "epssPercentile": 0.23118,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42309",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42309",
      "released": "2022-11-01T13:15:11Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42309",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42309",
      "released": "2022-11-01T13:15:11Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42309",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42309",
      "released": "2022-11-01T13:15:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}