An update for tigervnc is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,

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

Synopsis:          Important: tigervnc security update
Advisory ID:       RHSA-2023:1599-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:1599
Issue date:        2023-04-04
CVE Names:         CVE-2023-1393 
====================================================================
1. Summary:

An update for tigervnc is now available for Red Hat Enterprise Linux 9.0
Extended Update Support.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream EUS (v.9.0) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

Virtual Network Computing (VNC) is a remote display system which allows
users to view a computing desktop environment not only on the machine where
it is running, but from anywhere on the Internet and from a wide variety of
machine architectures. TigerVNC is a suite of VNC servers and clients.

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.

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/):

2180288 - CVE-2023-1393 xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v.9.0):

Source:
tigervnc-1.11.0-22.el9_0.2.src.rpm

aarch64:
tigervnc-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-debugsource-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-module-1.11.0-22.el9_0.2.aarch64.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.2.aarch64.rpm

noarch:
tigervnc-icons-1.11.0-22.el9_0.2.noarch.rpm
tigervnc-license-1.11.0-22.el9_0.2.noarch.rpm
tigervnc-selinux-1.11.0-22.el9_0.2.noarch.rpm

ppc64le:
tigervnc-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-debugsource-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-module-1.11.0-22.el9_0.2.ppc64le.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.2.ppc64le.rpm

s390x:
tigervnc-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-debugsource-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-module-1.11.0-22.el9_0.2.s390x.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.2.s390x.rpm

x86_64:
tigervnc-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-debugsource-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-module-1.11.0-22.el9_0.2.x86_64.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.2.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-2023-1393
https://access.redhat.com/security/updates/classification/#important

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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