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USN-5193-3 (UBUNTU-CVE-2021-4008)

Vulnerability from osv_ubuntu – Published: 2023-07-27 09:41 – Updated: 2026-06-25 10:46 – Source website
VLAI
Summary
xorg-server-hwe-16.04 vulnerabilities
Details

USN-5193-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

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

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-4008",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-4009",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-4011",
              "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": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xmir-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xorg-server-source-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xserver-xephyr-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xserver-xorg-core-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xserver-xorg-dev-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xserver-xorg-legacy-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          },
          {
            "binary_name": "xwayland-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "xorg-server-hwe-16.04",
        "purl": "pkg:deb/ubuntu/xorg-server-hwe-16.04@2:1.19.6-1ubuntu4.1~16.04.6+esm5?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.19.6-1ubuntu4.1~16.04.6+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:1.18.4-1ubuntu6.1~16.04.1",
        "2:1.18.4-1ubuntu6.1~16.04.2",
        "2:1.19.3-1ubuntu1~16.04.2",
        "2:1.19.3-1ubuntu1~16.04.3",
        "2:1.19.3-1ubuntu1~16.04.4",
        "2:1.19.5-0ubuntu2~16.04.1",
        "2:1.19.6-1ubuntu4~16.04.1",
        "2:1.19.6-1ubuntu4.1~16.04.1",
        "2:1.19.6-1ubuntu4.1~16.04.2",
        "2:1.19.6-1ubuntu4.1~16.04.3",
        "2:1.19.6-1ubuntu4.1~16.04.4",
        "2:1.19.6-1ubuntu4.1~16.04.5",
        "2:1.19.6-1ubuntu4.1~16.04.6",
        "2:1.19.6-1ubuntu4.1~16.04.6+esm1",
        "2:1.19.6-1ubuntu4.1~16.04.6+esm3",
        "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5193-1 fixed several vulnerabilities in X.Org. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled\n certain inputs. An attacker could use this issue to cause the server to\n crash, resulting in a denial of service, or possibly execute arbitrary\n code and escalate privileges.\n",
  "id": "USN-5193-3",
  "modified": "2026-06-25T10:46:03Z",
  "published": "2023-07-27T09:41:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5193-3"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4008"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4009"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4011"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "xorg-server-hwe-16.04 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-4008",
    "UBUNTU-CVE-2021-4009",
    "UBUNTU-CVE-2021-4011"
  ]
}



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