Debian Security Advisory

DLA-2854-1 novnc -- LTS security update

Date Reported:
28 Dec 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2017-18635.
More information:

An XSS vulnerability was discovered in noVNC, a HTML5 VNC client, in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name.

For Debian 9 stretch, this problem has been fixed in version 1:0.4+dfsg+1+20131010+gitf68af8af3d-6+deb9u1.

We recommend that you upgrade your novnc packages.

For the detailed security status of novnc please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: