RHSA-2023:6917 — Security Advisory
Red Hat Security Advisory: xorg-x11-server-Xwayland security and bug fix update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 15, 2023
Updated · November 22, 2025
Topic
An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Xwayland is an X server for running X clients under Wayland.
Security Fix(es):
- xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability (CVE-2023-1393)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.9 Release Notes linked from the References section.