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
Source: USN-4120-1: systemd vulnerability
