A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 17.04
systemd could be made to temporarily stop responding if it received
specially crafted network traffic.
- systemd: system and service manager
Karim Hossen & Thomas Imbert discovered that systemd-resolved incorrectly
handled certain DNS responses. A remote attacker could possibly use this
issue to cause systemd to temporarily stop responding, resulting in a
denial of service.
The problem can be corrected by updating your system to the following
In general, a standard system update will make all the necessary changes.