USN-4120-2: systemd regression

systemd regression

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 19.04
Ubuntu 18.04 LTS

Summary

USN-4120-1 caused a regression in systemd.

Software Description

systemd – system and service manager

Details

USN-4120-1 fixed a vulnerability in systemd. The update included a recent
SRU from the updates pocket that introduced networking problems for some
users. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that the systemd-resolved D-Bus interface did not
enforce appropriate access controls. A local unprivileged user could
exploit this to modify a system’s DNS resolver settings.

Update instructions

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

Ubuntu 19.04: systemd – 240-6ubuntu5.7
Ubuntu 18.04 LTS: systemd – 237-3ubuntu10.29

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.

References

Source: USN-4120-2: systemd regression

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