{
  "cveId": "CVE-2022-42321",
  "url": "https://patchblox.com/security/cve/CVE-2022-42321",
  "summary": "CVE-2022-42321 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-42321, released November 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xen: Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operatio...",
  "description": "Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.",
  "published": "2022-11-01T13:15:11Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
  "epss": 0.00297,
  "epssPercentile": 0.22478,
  "priority": "Routine",
  "priorityTier": 4,
  "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-2022-42321",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42321",
      "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-2022-42321",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42321",
      "released": "2022-11-01T13:15:11Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42321",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42321",
      "released": "2022-11-01T13:15:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}