USN-2866-1: Firefox vulnerability

Publication date

8 January 2016

Overview

Firefox could be made to expose sensitive information over the network.


Packages

  • firefox - Mozilla Open Source web browser

Details

Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectly
allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were
able to perform a machine-in-the-middle attack, this flaw could be exploited to
view sensitive information.

Karthikeyan Bhargavan and Gaetan Leurent discovered that NSS incorrectly
allowed MD5 to be used for TLS 1.2 connections. If a remote attacker were
able to perform a machine-in-the-middle attack, this flaw could be exploited to
view sensitive information.

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 –  43.0.4+build3-0ubuntu0.15.10.1
15.04 vivid firefox –  43.0.4+build3-0ubuntu0.15.04.1
14.04 trusty firefox –  43.0.4+build3-0ubuntu0.14.04.1
12.04 precise firefox –  43.0.4+build3-0ubuntu0.12.04.1

Reduce your security exposure

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Have additional questions?

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