Mailman could be made to run arbitrary code.
It was discovered that Mailman incorrectly handled certain web scripts. An attacker could possibly use this to inject arbitrary code.
8 February 2018
A security issue affects these releases of Ubuntu and its derivatives:
Mailman could be made to run arbitrary code.
It was discovered that Mailman incorrectly handled certain web scripts. An attacker could possibly use this to inject arbitrary code.
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