(RHSA-2022:1917) Moderate: xorg-x11-server and xorg-x11-server-Xwayland security update

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.

Xwayland is an X server for running X clients under Wayland.

The following packages have been upgraded to a later upstream version: xorg-x11-server-Xwayland (21.1.3). (BZ#2015842)

Security Fix(es):

• xorg-x11-server: SProcRenderCompositeGlyphs out-of-bounds access (CVE-2021-4008)

• xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access (CVE-2021-4009)

• xorg-x11-server: SProcScreenSaverSuspend out-of-bounds access (CVE-2021-4010)

• xorg-x11-server: SwapCreateRegister out-of-bounds access (CVE-2021-4011)

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 8.6 Release Notes linked from the References section.