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Medium ALSA-2023:2786 1 CVE

Moderate: wayland security, bug fix, and enhancement update

Published May 16, 2023 · Updated Oct 29, 2026

Summary

Wayland is a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and evdev input devices, an X application, or a wayland client itself. The clients can be traditional applications, X servers (rootless or fullscreen) or other display servers.

The following packages have been upgraded to a later upstream version: wayland (1.21.0). (BZ#2137625)

Security Fix(es):

* wayland: libwayland-server wl_shm reference-count overflow (CVE-2021-3782)

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 AlmaLinux Release Notes linked from the References section.

Fixed packages 5

ReleasePackageFixed in
AlmaLinux · 8 libwayland-client 1.21.0-1.el8
AlmaLinux · 8 libwayland-cursor 1.21.0-1.el8
AlmaLinux · 8 libwayland-egl 1.21.0-1.el8
AlmaLinux · 8 libwayland-server 1.21.0-1.el8
AlmaLinux · 8 wayland-devel 1.21.0-1.el8

Vulnerabilities 1

References

  • report
    https://access.redhat.com/security/cve/CVE-2021-3782
  • report
    https://bugzilla.redhat.com/2002627
  • advisory
    https://errata.almalinux.org/8/ALSA-2023-2786.html