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OpenAdvisories
Unscored USN-5193-2 3 CVEs

xorg-server vulnerabilities

Published Jan 26, 2022 · Updated Jun 29, 2026

Summary

USN-5193-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 14.04 ESM and 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.

Fixed packages 2

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS xorg-server 2:1.15.1-0ubuntu2.11+esm5
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS xorg-server 2:1.18.4-0ubuntu0.12+esm1

Vulnerabilities 3

References

  • report
    https://ubuntu.com/security/CVE-2021-4008
  • report
    https://ubuntu.com/security/CVE-2021-4009
  • report
    https://ubuntu.com/security/CVE-2021-4011