USN-4058-1: Bash vulnerability
15 July 2019
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
A system hardening measure could be bypassed.
- bash - GNU Bourne Again SHell
It was discovered that Bash incorrectly handled the restricted shell. An attacker could possibly use this issue to escape restrictions and execute any command.
The problem can be corrected by updating your system to the following package versions:
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.