A system hardening measure could be bypassed.
USN-4058-1 fixed a vulnerability in bash. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
5 August 2019
A security issue affects these releases of Ubuntu and its derivatives:
A system hardening measure could be bypassed.
USN-4058-1 fixed a vulnerability in bash. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
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.
Vulmon