An update for xorg-x11-server is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of
 Important. 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.

X.Org is an open-source implementation of the X Window System. It provides the
 basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Security Fix(es):

* xorg-x11-server: out-of-bounds memory reads/writes in XKB button actions
 (CVE-2023-6377)

* xorg-x11-server: out-of-bounds memory read in RRChangeOutputProperty and
 RRChangeProviderProperty (CVE-2023-6478)

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.

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CVE-2023-6377: Out-of-bounds Read (CWE-125)
CVE-2023-6478: Integer Overflow or Wraparound (CWE-190)