{
  "cveId": "CVE-2021-3472",
  "url": "https://patchblox.com/security/cve/CVE-2021-3472",
  "summary": "CVE-2021-3472 is fixed in 18 products on 1 platform, first by xdmx 2:1.19.6-1ubuntu4.9, released April 13, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "xdmx: A flaw was found in xorg-x11-server in versions before 1.20.11",
  "description": "A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
  "published": "2021-04-13T07:00:00Z",
  "severity": "Medium",
  "epss": 0.0105,
  "epssPercentile": 0.64475,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "xdmx",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xdmx 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xdmx-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xdmx",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xdmx 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xdmx-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xdmx-tools",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xdmx-tools 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xdmx-tools-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xdmx-tools",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xdmx-tools 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xdmx-tools-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xmir",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xmir 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xmir-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xnest",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xnest 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xnest-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xnest",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xnest 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xnest-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xorg-server-source",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xorg-server-source 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xorg-server-source-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xorg-server-source",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xorg-server-source 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xorg-server-source-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xorg-server-source-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xorg-server-source-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xorg-server-source-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xserver-common 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-common-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-common",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xserver-common 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xserver-common-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xephyr",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xserver-xephyr 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xephyr-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xephyr",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xserver-xephyr 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xserver-xephyr-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xephyr-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xserver-xephyr-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xephyr-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-core",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xserver-xorg-core 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-core-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-core",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xserver-xorg-core-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-core-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xserver-xorg-core-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-core-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-dev-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xserver-xorg-dev-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-dev-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-legacy",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xserver-xorg-legacy 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-legacy-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-legacy",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xserver-xorg-legacy 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xserver-xorg-legacy-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-legacy-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xserver-xorg-legacy-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-legacy-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xserver-xorg-xmir",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xserver-xorg-xmir 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xserver-xorg-xmir-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xvfb",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xvfb 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xvfb-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xvfb",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xvfb 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xvfb-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xwayland",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.19.6-1ubuntu4.9",
      "fix": "xwayland 2:1.19.6-1ubuntu4.9",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xwayland-2-1.19.6-1ubuntu4.9",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xwayland",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2:1.20.9-2ubuntu1.2~20.04.2",
      "fix": "xwayland 2:1.20.9-2ubuntu1.2~20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-xwayland-2-1.20.9-2ubuntu1.2-20.04.2",
      "released": "2021-04-13T07:00:00Z"
    },
    {
      "platform": "linux",
      "product": "xwayland-hwe-18.04",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2:1.20.8-2ubuntu2.2~18.04.5",
      "fix": "xwayland-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-xwayland-hwe-18.04-2-1.20.8-2ubuntu2.2-18.04.5",
      "released": "2021-04-13T07:00:00Z"
    }
  ],
  "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"
  }
}