USN-2362-1: Bash vulnerability

Publication date

24 September 2014

Overview

Bash allowed bypassing environment restrictions in certain environments.


Packages

  • bash - GNU Bourne Again SHell

Details

Stephane Chazelas discovered that Bash incorrectly handled trailing code in
function definitions. An attacker could use this issue to bypass
environment restrictions, such as SSH forced command environments.

Stephane Chazelas discovered that Bash incorrectly handled trailing code in
function definitions. An attacker could use this issue to bypass
environment restrictions, such as SSH forced command environments.

Update instructions

In general, a standard system update will 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
14.04 trusty bash –  4.3-7ubuntu1.1
12.04 precise bash –  4.2-2ubuntu2.2
10.04 lucid bash –  4.1-2ubuntu3.1

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