RHSA-2020:4910HighCVSS 7.8

Red Hat Security Advisory: xorg-x11-server security update

Published
November 4, 2020
Last Modified
November 6, 2026

🔗 CVE IDs covered (4)

CVE-2020-14345 →CVE-2020-14346 →CVE-2020-14361 →CVE-2020-14362 →

📋 Description

CVE-2020-14345 — xorg-x11-server: Out-of-bounds access in XkbSetNames function CVE-2020-14346 — xorg-x11-server: Integer underflow in the X input extension protocol CVE-2020-14361 — xorg-x11-server: XkbSelectEvents integer underflow privilege escalation vulnerability CVE-2020-14362 — xorg-x11-server: XRecordRegisterClients integer underflow privilege escalation vulnerability

🎯 Affected products92

  • Red Hat Enterprise Linux Client (v. 7)
  • Red Hat Enterprise Linux Client Optional (v. 7)
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • Red Hat Enterprise Linux Server (v. 7)
  • Red Hat Enterprise Linux Server Optional (v. 7)
  • Red Hat Enterprise Linux Workstation (v. 7)
  • Red Hat Enterprise Linux Workstation Optional (v. 7)
  • xorg-x11-server-0:1.20.4-12.el7_9.src as a component of Red Hat Enterprise Linux Client (v. 7)
  • xorg-x11-server-0:1.20.4-12.el7_9.src as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • xorg-x11-server-0:1.20.4-12.el7_9.src as a component of Red Hat Enterprise Linux Server (v. 7)
  • xorg-x11-server-0:1.20.4-12.el7_9.src as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xdmx-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Workstation Optional (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.s390x as a component of Red Hat Enterprise Linux Server (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Client (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)
  • xorg-x11-server-Xephyr-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)
  • xorg-x11-server-Xnest-0:1.20.4-12.el7_9.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xnest-0:1.20.4-12.el7_9.ppc64le as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xnest-0:1.20.4-12.el7_9.s390x as a component of Red Hat Enterprise Linux Server Optional (v. 7)
  • xorg-x11-server-Xnest-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux Client Optional (v. 7)
  • xorg-x11-server-Xnest-0:1.20.4-12.el7_9.x86_64 as a component of Red Hat Enterprise Linux ComputeNode Optional (v. 7)
  • +62 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (7)