{
  "cveId": "CVE-2022-42323",
  "url": "https://patchblox.com/security/cve/CVE-2022-42323",
  "summary": "CVE-2022-42323 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-42323, released November 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xen: Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple C...",
  "description": "Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A\u0027s local Xenstore tree. Domain B can then create many nodes and reboot. The nodes created by domain B will now be owned by Dom0. By repeating this process over and over again an arbitrary number of nodes can be created, as Dom0\u0027s number of nodes isn\u0027t limited by Xenstore quota.",
  "published": "2022-11-01T13:15:11Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00306,
  "epssPercentile": 0.23512,
  "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-2022-42323",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42323",
      "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-2022-42323",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42323",
      "released": "2022-11-01T13:15:11Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42323",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42323",
      "released": "2022-11-01T13:15:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}