Updated novnc packages has been released for Debian GNU/Linux 8 LTS
Package : novncNovnc Security Update for Debian 8 LTS
Version : 1:0.4+dfsg+1+20131010+gitf68af8af3d-4+deb8u1
CVE ID : CVE-2017-18635
An XSS vulnerability was discovered in noVNC 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 8 "Jessie", this problem has been fixed in version
1:0.4+dfsg+1+20131010+gitf68af8af3d-4+deb8u1.
We recommend that you upgrade your novnc packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS