{
  "cveId": "CVE-2022-42319",
  "url": "https://patchblox.com/security/cve/CVE-2022-42319",
  "summary": "CVE-2022-42319 is fixed in xen on 1 platform, first by DEBIAN-CVE-2022-42319, released November 1, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xen: Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored migh...",
  "description": "Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) 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": 0.22463,
  "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-2022-42319",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42319",
      "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-2022-42319",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42319",
      "released": "2022-11-01T13:15:11Z"
    },
    {
      "platform": "linux",
      "product": "xen",
      "release": "Debian 14",
      "fixedVersion": "4.16.2\u002B90-g0d39a6d1ae-1",
      "fix": "DEBIAN-CVE-2022-42319",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-42319",
      "released": "2022-11-01T13:15:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}