Ubuntu 16.10 USN-3140-1 Moderate: Firefox Crash And Code Execution

ubuntu

November 30, 2016

Firefox could be made to crash or run programs as your login if it opened a malicious website.

Summary

Firefox could be made to crash or run programs as your login if it

opened a malicious website.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

It was discovered that data: URLs can inherit the wrong origin after a

HTTP redirect in some circumstances. An attacker could potentially

exploit this to bypass same-origin restrictions. (CVE-2016-9078)

A use-after-free was discovered in SVG animations. If a user were tricked

in to opening a specially crafted website, an attacker could exploit this

to cause a denial of service via application crash, or execute arbitrary

code. (CVE-2016-9079)

Topics Covered

security advisory denial of service code execution moderate severity firefox ubuntu crash

Update Instructions

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

Ubuntu 16.10:
  firefox                         50.0.2+build1-0ubuntu0.16.10.1

Ubuntu 16.04 LTS:
  firefox                         50.0.2+build1-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
  firefox                         50.0.2+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         50.0.2+build1-0ubuntu0.12.04.1

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