A same-origin-policy bypass was discovered in Firefox.
Jason Pang discovered that service workers intercept responses to plugin network requests made through the browser. An attacker could potentially exploit this to bypass same origin restrictions using the Flash plugin. (CVE-2016-1949)
11 February 2016
A security issue affects these releases of Ubuntu and its derivatives:
A same-origin-policy bypass was discovered in Firefox.
Jason Pang discovered that service workers intercept responses to plugin network requests made through the browser. An attacker could potentially exploit this to bypass same origin restrictions using the Flash plugin. (CVE-2016-1949)
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.
After a standard system update you need to restart Firefox to make all the necessary changes.
Vulmon