Horizon could be made to expose sensitive information over the network.
Chris Chapman discovered cross-site scripting (XSS) vulnerabilities in Horizon via the Volumes and Network Topology pages. An authenticated attacker could exploit these to conduct stored cross-site scripting (XSS) attacks against users viewing these pages in order to modify the contents or steal confidential data within the same domain.
20 December 2013
A security issue affects these releases of Ubuntu and its derivatives:
Horizon could be made to expose sensitive information over the network.
Chris Chapman discovered cross-site scripting (XSS) vulnerabilities in Horizon via the Volumes and Network Topology pages. An authenticated attacker could exploit these to conduct stored cross-site scripting (XSS) attacks against users viewing these pages in order to modify the contents or steal confidential data within the same domain.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon