QID 198198

Date Published: 2021-03-23

QID 198198: Ubuntu Security Notification for noVNC vulnerability (USN-4522-1)

It was discovered that noVNC did not properly manage certain messages, resulting in the remote VNC server injecting arbitrary HTML into the noVNC web page.

An attacker could use this issue to conduct cross-site scripting (XSS) attacks. (CVE-2017-18635)

CVSS V3 rated as High - 6.1 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

Refer to Ubuntu advisory USN-4522-1 for affected packages and patching details, or update with your package manager.

Vendor References

USN-4522-1 - ubuntu.com/security/notices/USN-4522-1

CVEs related to QID 198198

CVE-2017-18635 |

Software Advisories

Advisory ID	Software	Component	Link
USN-4522-1	16.04 (Xenial) on src	novnc	launchpad.net/ubuntu/+source/novnc/1:0.4+dfsg+1+20131010+gitf68af8af3d-4+deb8u1build0.16.04.1

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