Ubuntu Security Notice USN-4180-1
November 11, 2019
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 12.04 ESM
Bash could be made to crash or execute arbitrary code if it received
a specially crafted input.
– bash: GNU Bourne Again SHell
It was discovered that Bash incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a crash or execute
The problem can be corrected by updating your system to the following
Ubuntu 12.04 ESM:
After a standard system update you need to restart Bash to make
all the necessary changes.