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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: wayland security, bug fix, and enhancement update
Advisory ID:       RHSA-2023:2786-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:2786
Issue date:        2023-05-16
CVE Names:         CVE-2021-3782 
====================================================================
1. Summary:

An update for wayland 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

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 Red Hat
Enterprise Linux 8.8 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

2002627 - CVE-2021-3782 wayland: libwayland-server wl_shm reference-count overflow
2137625 - Rebase wayland to 1.21 in el8

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
wayland-1.21.0-1.el8.src.rpm

aarch64:
libwayland-client-1.21.0-1.el8.aarch64.rpm
libwayland-client-debuginfo-1.21.0-1.el8.aarch64.rpm
libwayland-cursor-1.21.0-1.el8.aarch64.rpm
libwayland-cursor-debuginfo-1.21.0-1.el8.aarch64.rpm
libwayland-egl-1.21.0-1.el8.aarch64.rpm
libwayland-egl-debuginfo-1.21.0-1.el8.aarch64.rpm
libwayland-server-1.21.0-1.el8.aarch64.rpm
libwayland-server-debuginfo-1.21.0-1.el8.aarch64.rpm
wayland-debuginfo-1.21.0-1.el8.aarch64.rpm
wayland-debugsource-1.21.0-1.el8.aarch64.rpm
wayland-devel-1.21.0-1.el8.aarch64.rpm
wayland-devel-debuginfo-1.21.0-1.el8.aarch64.rpm

ppc64le:
libwayland-client-1.21.0-1.el8.ppc64le.rpm
libwayland-client-debuginfo-1.21.0-1.el8.ppc64le.rpm
libwayland-cursor-1.21.0-1.el8.ppc64le.rpm
libwayland-cursor-debuginfo-1.21.0-1.el8.ppc64le.rpm
libwayland-egl-1.21.0-1.el8.ppc64le.rpm
libwayland-egl-debuginfo-1.21.0-1.el8.ppc64le.rpm
libwayland-server-1.21.0-1.el8.ppc64le.rpm
libwayland-server-debuginfo-1.21.0-1.el8.ppc64le.rpm
wayland-debuginfo-1.21.0-1.el8.ppc64le.rpm
wayland-debugsource-1.21.0-1.el8.ppc64le.rpm
wayland-devel-1.21.0-1.el8.ppc64le.rpm
wayland-devel-debuginfo-1.21.0-1.el8.ppc64le.rpm

s390x:
libwayland-client-1.21.0-1.el8.s390x.rpm
libwayland-client-debuginfo-1.21.0-1.el8.s390x.rpm
libwayland-cursor-1.21.0-1.el8.s390x.rpm
libwayland-cursor-debuginfo-1.21.0-1.el8.s390x.rpm
libwayland-egl-1.21.0-1.el8.s390x.rpm
libwayland-egl-debuginfo-1.21.0-1.el8.s390x.rpm
libwayland-server-1.21.0-1.el8.s390x.rpm
libwayland-server-debuginfo-1.21.0-1.el8.s390x.rpm
wayland-debuginfo-1.21.0-1.el8.s390x.rpm
wayland-debugsource-1.21.0-1.el8.s390x.rpm
wayland-devel-1.21.0-1.el8.s390x.rpm
wayland-devel-debuginfo-1.21.0-1.el8.s390x.rpm

x86_64:
libwayland-client-1.21.0-1.el8.i686.rpm
libwayland-client-1.21.0-1.el8.x86_64.rpm
libwayland-client-debuginfo-1.21.0-1.el8.i686.rpm
libwayland-client-debuginfo-1.21.0-1.el8.x86_64.rpm
libwayland-cursor-1.21.0-1.el8.i686.rpm
libwayland-cursor-1.21.0-1.el8.x86_64.rpm
libwayland-cursor-debuginfo-1.21.0-1.el8.i686.rpm
libwayland-cursor-debuginfo-1.21.0-1.el8.x86_64.rpm
libwayland-egl-1.21.0-1.el8.i686.rpm
libwayland-egl-1.21.0-1.el8.x86_64.rpm
libwayland-egl-debuginfo-1.21.0-1.el8.i686.rpm
libwayland-egl-debuginfo-1.21.0-1.el8.x86_64.rpm
libwayland-server-1.21.0-1.el8.i686.rpm
libwayland-server-1.21.0-1.el8.x86_64.rpm
libwayland-server-debuginfo-1.21.0-1.el8.i686.rpm
libwayland-server-debuginfo-1.21.0-1.el8.x86_64.rpm
wayland-debuginfo-1.21.0-1.el8.i686.rpm
wayland-debuginfo-1.21.0-1.el8.x86_64.rpm
wayland-debugsource-1.21.0-1.el8.i686.rpm
wayland-debugsource-1.21.0-1.el8.x86_64.rpm
wayland-devel-1.21.0-1.el8.i686.rpm
wayland-devel-1.21.0-1.el8.x86_64.rpm
wayland-devel-debuginfo-1.21.0-1.el8.i686.rpm
wayland-devel-debuginfo-1.21.0-1.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-3782
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.8_release_notes/index

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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