USN-4120-1: systemd vulnerability

USN-4120-1: systemd vulnerability

systemd vulnerability

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

• Ubuntu 19.04
• Ubuntu 18.04 LTS

Summary

systemd-resolved would allow unprivileged users to change DNS settings.

Software Description

• systemd – system and service manager

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 – 240-6ubuntu5.6

Ubuntu 18.04 LTS

systemd – 237-3ubuntu10.28

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

• CVE-2019-15718

Source: USN-4120-1: systemd vulnerability