Alerts This Week
Warning Icon 1 631
Alerts This Week
Warning Icon 1 631

RedHat: RHSA-2023-0623 Important: Tigervnc Privilege Escalation Fix

Redhat Large Esm H500
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,
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: tigervnc security update
Advisory ID:       RHSA-2023:0623-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:0623
Issue date:        2023-02-07
CVE Names:         CVE-2023-0494 
====================================================================
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: DeepCopyPointerClasses use-after-free leads to privilege
elevation (CVE-2023-0494)

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/):

2165995 - CVE-2023-0494 xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation

6. Package List:

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

Source:
tigervnc-1.11.0-22.el9_0.1.src.rpm

aarch64:
tigervnc-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-debugsource-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-module-1.11.0-22.el9_0.1.aarch64.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm

noarch:
tigervnc-icons-1.11.0-22.el9_0.1.noarch.rpm
tigervnc-license-1.11.0-22.el9_0.1.noarch.rpm
tigervnc-selinux-1.11.0-22.el9_0.1.noarch.rpm

ppc64le:
tigervnc-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-debugsource-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-module-1.11.0-22.el9_0.1.ppc64le.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm

s390x:
tigervnc-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-debugsource-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-module-1.11.0-22.el9_0.1.s390x.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.s390x.rpm

x86_64:
tigervnc-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-debuginfo-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-debugsource-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-debuginfo-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-minimal-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-module-1.11.0-22.el9_0.1.x86_64.rpm
tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.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-2023-0494
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.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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/xcu
-----END PGP SIGNATURE-----
--
RHSA-announce mailing list
This email address is being protected from spambots. You need JavaScript enabled to view it.

RedHat: RHSA-2023-0623 Important: Tigervnc Privilege Escalation Fix

red hat
Calendar Grey February 7, 2023
Dist Redhat Esm H88
A significant patch has been issued for tigervnc addressing privilege escalation vulnerabilities, applicable to RHEL 9.0 Extended Update Support.
An update for tigervnc is now available for Red Hat Enterprise Linux 9.0 Extended Update Support

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

Summary

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: DeepCopyPointerClasses use-after-free leads to privilege elevation (CVE-2023-0494)
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.

References

https://access.redhat.com/security/cve/CVE-2023-0494 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream EUS (v.9.0):
Source: tigervnc-1.11.0-22.el9_0.1.src.rpm
aarch64: tigervnc-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-debugsource-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-minimal-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-module-1.11.0-22.el9_0.1.aarch64.rpm tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.aarch64.rpm
noarch: tigervnc-icons-1.11.0-22.el9_0.1.noarch.rpm tigervnc-license-1.11.0-22.el9_0.1.noarch.rpm tigervnc-selinux-1.11.0-22.el9_0.1.noarch.rpm
ppc64le: tigervnc-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-debugsource-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-minimal-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-minimal-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-module-1.11.0-22.el9_0.1.ppc64le.rpm tigervnc-server-module-debuginfo-1.11.0-22.el9_0.1.ppc64le.rpm
s390x: tigervnc-1.11.0-22.el9_0.1.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0623-01
Product: Red Hat Enterprise Linux
Issue date: 2023-02-07

Topic

An update for tigervnc is now available for Red Hat Enterprise Linux 9.0Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Relevant Releases Architectures

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

Bugs Fixed

2165995 - CVE-2023-0494 xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here