USN-2363-2: Bash vulnerability

26 September 2014

bash vulnerability

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

  • Ubuntu 14.04 LTS

Summary

Bash allowed bypassing environment restrictions in certain environments.

Software Description

  • bash - GNU Bourne Again SHell

Details

USN-2363-1 fixed a vulnerability in Bash. Due to a build issue, the patch for CVE-2014-7169 didn’t get properly applied in the Ubuntu 14.04 LTS package. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Tavis Ormandy discovered that the security fix for Bash included in USN-2362-1 was incomplete. An attacker could use this issue to bypass certain environment restrictions. (CVE-2014-7169)

Update instructions

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

Ubuntu 14.04 LTS
bash - 4.3-7ubuntu1.3

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References