Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-3806-1: systemd vulnerability

5 November 2018

systemd-networkd could be made to crash or run programs if it received specially crafted network traffic.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

  • systemd - system and service manager

Details

Felix Wilhelm discovered that the systemd-networkd DHCPv6 client
incorrectly handled certain DHCPv6 messages. In configurations where
systemd-networkd is being used, an attacker on the same network could use
this issue to cause systemd-networkd to crash, resulting in a denial of
service, or possibly execute arbitrary code.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

References

Related notices

  • USN-3807-1: gir1.2-networkmanager-1.0, network-manager, gir1.2-nm-1.0, libnm-dev, libnm-util-dev, libnm0, network-manager-config-connectivity-debian, libnm-util2, libnm-glib-vpn-dev, network-manager-config-connectivity-ubuntu, libnm-glib-dev, network-manager-dev, libnm-glib-vpn1, libnm-glib4