{
  "cveId": "CVE-2022-20566",
  "url": "https://patchblox.com/security/cve/CVE-2022-20566",
  "summary": "CVE-2022-20566 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-20566, released December 16, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking",
  "description": "In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel",
  "published": "2022-12-16T16:15:19Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00217,
  "epssPercentile": 0.12305,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.16-1",
      "fix": "DEBIAN-CVE-2022-20566",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-20566",
      "released": "2022-12-16T16:15:19Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.16-1",
      "fix": "DEBIAN-CVE-2022-20566",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-20566",
      "released": "2022-12-16T16:15:19Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.16-1",
      "fix": "DEBIAN-CVE-2022-20566",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-20566",
      "released": "2022-12-16T16:15:19Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T20:03:11Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}