{
  "cveId": "CVE-2020-13753",
  "url": "https://patchblox.com/security/cve/CVE-2020-13753",
  "summary": "CVE-2020-13753 is fixed in 7 products on 1 platform, first by gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.18.04.1, released July 12, 2020. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "gir1.2-javascriptcoregtk-4.0: The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER...",
  "description": "The bubblewrap sandbox of WebKitGTK and WPE WebKit, prior to 2.28.3, failed to properly block access to CLONE_NEWUSER and the TIOCSTI ioctl. CLONE_NEWUSER could potentially be used to confuse xdg-desktop-portal, which allows access outside the sandbox. TIOCSTI can be used to directly execute commands outside the sandbox by writing to the controlling terminal\u0027s input buffer, similar to CVE-2017-5226.",
  "published": "2020-07-12T17:00:00Z",
  "severity": "Medium",
  "epss": 0.03266,
  "epssPercentile": 0.88463,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "gir1.2-javascriptcoregtk-4.0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gir1.2-javascriptcoregtk-4.0-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gir1.2-javascriptcoregtk-4.0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "gir1.2-javascriptcoregtk-4.0 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gir1.2-javascriptcoregtk-4.0-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gir1.2-webkit2-4.0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "gir1.2-webkit2-4.0 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gir1.2-webkit2-4.0-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gir1.2-webkit2-4.0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "gir1.2-webkit2-4.0 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gir1.2-webkit2-4.0-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libjavascriptcoregtk-4.0-18",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "libjavascriptcoregtk-4.0-18 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-18-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libjavascriptcoregtk-4.0-18",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "libjavascriptcoregtk-4.0-18 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libjavascriptcoregtk-4.0-18-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libjavascriptcoregtk-4.0-bin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "libjavascriptcoregtk-4.0-bin 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-bin-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libjavascriptcoregtk-4.0-bin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "libjavascriptcoregtk-4.0-bin 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libjavascriptcoregtk-4.0-bin-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebkit2gtk-4.0-37",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "libwebkit2gtk-4.0-37 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebkit2gtk-4.0-37",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "libwebkit2gtk-4.0-37 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libwebkit2gtk-4.0-37-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebkit2gtk-4.0-37-gtk2",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "libwebkit2gtk-4.0-37-gtk2 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-gtk2-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libwebkit2gtk-4.0-37-gtk2",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "libwebkit2gtk-4.0-37-gtk2 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libwebkit2gtk-4.0-37-gtk2-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "webkit2gtk-driver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.28.3-0ubuntu0.18.04.1",
      "fix": "webkit2gtk-driver 2.28.3-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-webkit2gtk-driver-2.28.3-0ubuntu0.18.04.1",
      "released": "2020-07-12T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "webkit2gtk-driver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.28.3-0ubuntu0.20.04.1",
      "fix": "webkit2gtk-driver 2.28.3-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-webkit2gtk-driver-2.28.3-0ubuntu0.20.04.1",
      "released": "2020-07-12T17:00:00Z"
    }
  ],
  "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"
  }
}