{
  "cveId": "CVE-2018-15853",
  "url": "https://patchblox.com/security/cve/CVE-2018-15853",
  "summary": "CVE-2018-15853 is fixed in 6 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": "xkbcomp: This update for xkbcomp fixes the following issues:\n\n- CVE-2018-15863: NULL pointer dereference triggered by a a craf...",
  "description": "This update for xkbcomp fixes the following issues:\n\n- CVE-2018-15863: NULL pointer dereference triggered by a a crafted keymap file with a no-op modmask expression can\n  lead to a crash (bsc#1105832).\n- CVE-2018-15861: NULL pointer dereference triggered by a crafted keymap file that induces an \u0060xkb_intern_atom\u0060 failure\n  can lead to a crash (bsc#1105832).\n- CVE-2018-15859: NULL pointer dereference triggered by a specially a crafted keymap file can lead to a crash\n  (bsc#1105832).\n- CVE-2018-15853: endless recursion triggered by a crafted keymap file that induces boolean negation can lead to a\n  crash (bsc#1105832).",
  "published": "2018-08-24T17:00:00Z",
  "severity": "Low",
  "epss": 0.00535,
  "epssPercentile": 0.45366,
  "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"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "Fedora 43",
      "fixedVersion": "1.5.0-1.fc43",
      "fix": "FEDORA-2025-3A9B79CA0E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2025-3a9b79ca0e",
      "released": "2025-12-03T04:28:27Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "1.4.1-150000.3.6.1",
      "fix": "SUSE-SU-2025:4426-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4426-1",
      "released": "2025-12-17T11:22:42Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.4.7-160000.3.1",
      "fix": "OPENSUSE-SU-2026:20123-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20123-1",
      "released": "2026-01-28T15:47:30Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "sles 15.6",
      "fixedVersion": "1.4.1-150000.3.6.1",
      "fix": "SUSE-SU-2025:4426-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4426-1",
      "released": "2025-12-17T11:22:42Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "sles 15.7",
      "fixedVersion": "1.4.1-150000.3.6.1",
      "fix": "SUSE-SU-2025:4426-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2025-4426-1",
      "released": "2025-12-17T11:22:42Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp",
      "release": "sles 16.0",
      "fixedVersion": "1.4.7-160000.3.1",
      "fix": "SUSE-SU-2026:20186-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-20186-1",
      "released": "2026-01-28T15:47:14Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.5.0-1.fc43",
      "fix": "FEDORA-2025-3A9B79CA0E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2025-3a9b79ca0e",
      "released": "2025-12-03T04:28:27Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.5.0-1.fc43",
      "fix": "FEDORA-2025-3A9B79CA0E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2025-3a9b79ca0e",
      "released": "2025-12-03T04:28:27Z"
    },
    {
      "platform": "linux",
      "product": "xkbcomp-devel",
      "release": "Fedora 43",
      "fixedVersion": "1.5.0-1.fc43",
      "fix": "FEDORA-2025-3A9B79CA0E",
      "url": "https://patchblox.com/security/fix/linux/fedora-2025-3a9b79ca0e",
      "released": "2025-12-03T04:28:27Z"
    }
  ],
  "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"
  }
}