systemd could be made to crash if it received specially a crafted D-Bus message.
It was discovered that systemd incorrectly handled certain D-Bus messages. A local unprivileged attacker could exploit this in order to crash the init process, resulting in a system denial-of-service (kernel panic).
18 February 2019
A security issue affects these releases of Ubuntu and its derivatives:
systemd could be made to crash if it received specially a crafted D-Bus message.
It was discovered that systemd incorrectly handled certain D-Bus messages. A local unprivileged attacker could exploit this in order to crash the init process, resulting in a system denial-of-service (kernel panic).
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.
After a standard system update you need to reboot your computer to make all the necessary changes.
Vulmon