USN-2557-1: Firefox vulnerability

Publication date

7 April 2015

Overview

Firefox could be made to bypass SSL certificate verification.


Packages

  • firefox - Mozilla Open Source web browser

Details

Muneaki Nishimura discovered a flaw in Mozilla's HTTP Alternative Services
implementation which meant SSL certificate verification could be bypassed
in some circumstances. A remote attacker could potentially exploit this to
conduct a machine-in-the-middle attack. (CVE-2015-0799)

Muneaki Nishimura discovered a flaw in Mozilla's HTTP Alternative Services
implementation which meant SSL certificate verification could be bypassed
in some circumstances. A remote attacker could potentially exploit this to
conduct a machine-in-the-middle attack. (CVE-2015-0799)

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
14.10 utopic firefox –  37.0.1+build1-0ubuntu0.14.10.1
14.04 trusty firefox –  37.0.1+build1-0ubuntu0.14.04.1
12.04 precise firefox –  37.0.1+build1-0ubuntu0.12.04.1

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