PackageKit could be made to install or run programs as an administrator.
Matthias Gerstner discovered that PackageKit incorrectly handled authentication. A local attacker could possibly use this issue to install arbitrary packages and escalate privileges.
24 April 2018
A security issue affects these releases of Ubuntu and its derivatives:
PackageKit could be made to install or run programs as an administrator.
Matthias Gerstner discovered that PackageKit incorrectly handled authentication. A local attacker could possibly use this issue to install arbitrary packages and escalate privileges.
The problem can be corrected by updating your system to the following package versions:
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.