USN-4180-1: Bash vulnerability

11 November 2019

bash vulnerability

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.

Software Description

  • 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 arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 ESM
bash - 4.2-2ubuntu2.9

To update your system, please follow these instructions:

After a standard system update you need to restart Bash to make all the necessary changes.