=========================================================================Ubuntu Security Notice USN-3294-2
August 01, 2017
bash vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
A security issues were fixed in Bash.
Software Description:
- bash: GNU Bourne Again SHell
Details:
USN-3294-1 fixed a vulnerability in Bash. This update provides the
corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Bash incorrectly handled the SHELLOPTS and PS4
environment variables. A local attacker could use this issue to
execute arbitrary code with root privileges. (CVE-2016-7543)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
bash 4.2-2ubuntu2.7
In general, a standard system update will make all the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-3294-2
https://ubuntu.com/security/notices/USN-3294-1
CVE-2016-7543
