usn-4905-2
Vulnerability from osv_ubuntu
Published
2021-06-30 14:27
Modified
2026-06-29 10:52
Summary
xorg-server vulnerability
Details

USN-4905-1 fixed a vulnerability in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain lengths of XInput extension ChangeFeedbackControl requests. An attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3472",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xdmx",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xnest",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xserver-common",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          },
          {
            "binary_name": "xvfb",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "xorg-server",
        "purl": "pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.11+esm4?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.15.1-0ubuntu2.11+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:1.14.3-3ubuntu2",
        "2:1.14.3-3ubuntu3",
        "2:1.14.3-3ubuntu4",
        "2:1.14.3-5ubuntu1",
        "2:1.14.4-1ubuntu1",
        "2:1.14.4-1ubuntu2",
        "2:1.14.4.901-0ubuntu2",
        "2:1.14.5-1ubuntu2",
        "2:1.14.5-1ubuntu4",
        "2:1.15.0-1ubuntu1",
        "2:1.15.0-1ubuntu2",
        "2:1.15.0-1ubuntu3",
        "2:1.15.0-1ubuntu4",
        "2:1.15.0-1ubuntu6",
        "2:1.15.0-1ubuntu7",
        "2:1.15.1-0ubuntu1",
        "2:1.15.1-0ubuntu2",
        "2:1.15.1-0ubuntu2.1",
        "2:1.15.1-0ubuntu2.4",
        "2:1.15.1-0ubuntu2.5",
        "2:1.15.1-0ubuntu2.6",
        "2:1.15.1-0ubuntu2.7",
        "2:1.15.1-0ubuntu2.9",
        "2:1.15.1-0ubuntu2.10",
        "2:1.15.1-0ubuntu2.11",
        "2:1.15.1-0ubuntu2.11+esm2",
        "2:1.15.1-0ubuntu2.11+esm3"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-4905-1 fixed a vulnerability in X.Org. This update provides\nthe corresponding update for Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\n certain lengths of XInput extension ChangeFeedbackControl requests. An\n attacker could use this issue to cause the server to crash, resulting in a\n denial of service, or possibly execute arbitrary code.\n",
  "id": "USN-4905-2",
  "modified": "2026-06-29T10:52:49Z",
  "published": "2021-06-30T14:27:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4905-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3472"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "xorg-server vulnerability",
  "upstream": [
    "UBUNTU-CVE-2021-3472"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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