(RHSA-2020:0754) Moderate: novnc security update

The novnc package provides a VNC client that uses HTML5 (Web Sockets, Canvas) and includes encryption support.

An XSS vulnerability was discovered in noVNC in which arbitrary HTML could be injected into the noVNC web page. An attacker having access to a VNC server could use target host values in a crafted URL to gain access to secure information (such as VM tokens). (CVE-2017-18635)

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.