USN-3891-1: systemd vulnerability

18 February 2019

systemd could be made to crash if it received specially a crafted D-Bus message.



  • systemd - system and service manager


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).

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

After a standard system update you need to reboot your computer to make
all the necessary changes.