RHSA-2020:3456 — Security Advisory
Red Hat Security Advisory: libvncserver security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · August 17, 2020
Updated · June 25, 2026
Topic
An update for libvncserver is now available for Red Hat Enterprise Linux 8.1 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.
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.