Ubuntu Security Notice USN-2363-2
25th 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 version:
- 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.