Skip to content
OpenAdvisories
Medium USN-4488-2 5 CVEs

xorg-server vulnerabilities

Published Sep 9, 2020 · Updated Apr 22, 2026

Summary

USN-4488-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update and also the update from USN-4490-1 for Ubuntu 14.04 ESM.

Original advisory details:

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
input extension protocol. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14346)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized
memory. A local attacker could possibly use this issue to obtain sensitive
information. (CVE-2020-14347)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSelectEvents function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14361)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XRecordRegisterClients function. A local attacker could possibly use this
issue to escalate privileges. (CVE-2020-14362)

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the
XkbSetNames function. A local attacker could possibly use this issue to
escalate privileges. (CVE-2020-14345)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS xorg-server 2:1.15.1-0ubuntu2.11+esm2

Vulnerabilities 5

References

  • report
    https://ubuntu.com/security/CVE-2020-14345
  • report
    https://ubuntu.com/security/CVE-2020-14346
  • report
    https://ubuntu.com/security/CVE-2020-14347
  • report
    https://ubuntu.com/security/CVE-2020-14361
  • report
    https://ubuntu.com/security/CVE-2020-14362