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Unscored USN-4656-1 2 CVEs

xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerabilities

Published Dec 1, 2020 · Updated Apr 22, 2026

Summary

Jan-Niklas Sohn discovered that the X.Org X Server XKB extension
incorrectly handled certain inputs. A local attacker could possibly use
this issue to escalate privileges.

Fixed packages 5

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS xorg-server 2:1.18.4-0ubuntu0.11
Ubuntu · 16.04 LTS 16.04:LTS xorg-server-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.5
Ubuntu · 18.04 LTS 18.04:LTS xorg-server 2:1.19.6-1ubuntu4.8
Ubuntu · 18.04 LTS 18.04:LTS xorg-server-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.4
Ubuntu · 20.04 LTS 20.04:LTS xorg-server 2:1.20.8-2ubuntu2.6

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2020-14360
  • report
    https://ubuntu.com/security/CVE-2020-25712