A libvncserver security update has been released for Red Hat Enterprise Linux 8.0.

RHSA-2020:3588-01: Important: libvncserver security update

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

Synopsis: Important: libvncserver security update
Advisory ID: RHSA-2020:3588-01
Product: Red Hat Enterprise Linux
Advisory URL:   https://access.redhat.com/errata/RHSA-2020:3588
Issue date: 2020-09-01
CVE Names: CVE-2017-18922
=====================================================================

1. Summary:

An update for libvncserver is now available for Red Hat Enterprise Linux
8.0 Update Services for SAP Solutions.

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 E4S (v. 8.0) - ppc64le, x86_64

3. Description:

LibVNCServer is a C library that enables you to implement VNC server
functionality into own programs.

Security Fix(es):

* libvncserver: websocket decoding buffer overflow (CVE-2017-18922)

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/):

1852356 - CVE-2017-18922 libvncserver: websocket decoding buffer overflow

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.0):

Source:
libvncserver-0.9.11-9.el8_0.3.src.rpm

ppc64le:
libvncserver-0.9.11-9.el8_0.3.ppc64le.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.3.ppc64le.rpm
libvncserver-debugsource-0.9.11-9.el8_0.3.ppc64le.rpm

x86_64:
libvncserver-0.9.11-9.el8_0.3.i686.rpm
libvncserver-0.9.11-9.el8_0.3.x86_64.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.3.i686.rpm
libvncserver-debuginfo-0.9.11-9.el8_0.3.x86_64.rpm
libvncserver-debugsource-0.9.11-9.el8_0.3.i686.rpm
libvncserver-debugsource-0.9.11-9.el8_0.3.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-2017-18922
  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 2020 Red Hat, Inc.