USN-2893-1: Firefox vulnerability

Publication date

11 February 2016

Overview

A same-origin-policy bypass was discovered in Firefox.


Packages

  • firefox - Mozilla Open Source web browser

Details

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)

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)

Update instructions

After a standard system update you need to restart Firefox to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
15.10 wily firefox –  44.0.2+build1-0ubuntu0.15.10.1
14.04 trusty firefox –  44.0.2+build1-0ubuntu0.14.04.1
12.04 precise firefox –  44.0.2+build1-0ubuntu0.12.04.1

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