USN-1620-1: Firefox vulnerabilities

Ubuntu Security Notice USN-1620-1

26th October, 2012

firefox vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04
  • Ubuntu 10.04 LTS


Several security issues were fixed in Firefox.

Software description

  • firefox - Mozilla Open Source web browser


Mariusz Mlynski and others discovered several flaws in Firefox that allowed
a remote attacker to conduct cross-site scripting (XSS) attacks.
(CVE-2012-4194, CVE-2012-4195)

Antoine Delignat-Lavaud discovered a flaw in the way Firefox handled the
Location object. If a user were tricked into opening a specially crafted
page, a remote attacker could exploit this to bypass security protections
and perform cross-origin reading of the Location object. (CVE-2012-4196)

Update instructions

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

Ubuntu 12.10:
firefox 16.0.2+build1-0ubuntu0.12.10.1
Ubuntu 12.04 LTS:
firefox 16.0.2+build1-0ubuntu0.12.04.1
Ubuntu 11.10:
firefox 16.0.2+build1-0ubuntu0.11.10.1
Ubuntu 11.04:
firefox 16.0.2+build1-0ubuntu0.11.04.1
Ubuntu 10.04 LTS:
firefox 16.0.2+build1-0ubuntu0.10.04.1

To update your system, please follow these instructions:

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


CVE-2012-4194, CVE-2012-4195, CVE-2012-4196