1. Ubuntu Security Notices
  2. USN-3891-1

USN-3891-1: systemd vulnerability

Publication date

18 February 2019

Overview

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

Releases

Packages

  • systemd - system and service manager

Details

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).

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.10 cosmic libsystemd0 –  239-7ubuntu10.8
systemd –  239-7ubuntu10.8
18.04 bionic libsystemd0 –  237-3ubuntu10.13
systemd –  237-3ubuntu10.13
16.04 xenial libsystemd0 –  229-4ubuntu21.16
systemd –  229-4ubuntu21.16

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References

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