{
  "cveId": "CVE-2018-15854",
  "url": "https://patchblox.com/security/cve/CVE-2018-15854",
  "summary": "CVE-2018-15854 is fixed in 2 products on 1 platform, first by libxkbcommon-x11-0 0.8.0-1ubuntu0.1, released August 24, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libxkbcommon0: Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer derefe...",
  "description": "Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because geometry tokens were desupported incorrectly.",
  "published": "2018-08-24T17:00:00Z",
  "severity": "Medium",
  "epss": 0.00433,
  "epssPercentile": 0.37788,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libxkbcommon-x11-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.8.0-1ubuntu0.1",
      "fix": "libxkbcommon-x11-0 0.8.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libxkbcommon-x11-0-0.8.0-1ubuntu0.1",
      "released": "2018-08-24T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libxkbcommon0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.8.0-1ubuntu0.1",
      "fix": "libxkbcommon0 0.8.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libxkbcommon0-0.8.0-1ubuntu0.1",
      "released": "2018-08-24T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}