policykit-1 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
PolicyKit could allow unintended access.
Software Description
- policykit-1 - framework for managing administrative policies and privileges
Details
It was discovered that PolicyKit incorrectly handled certain large user UIDs. A local attacker with a large UID could possibly use this issue to perform privileged actions.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- libpolkit-backend-1-0 - 0.105-21ubuntu0.3
- policykit-1 - 0.105-21ubuntu0.3
- Ubuntu 18.04 LTS
- libpolkit-backend-1-0 - 0.105-20ubuntu0.18.04.4
- policykit-1 - 0.105-20ubuntu0.18.04.4
- Ubuntu 16.04 LTS
- libpolkit-backend-1-0 - 0.105-14.1ubuntu0.4
- policykit-1 - 0.105-14.1ubuntu0.4
- Ubuntu 14.04 LTS
- libpolkit-backend-1-0 - 0.105-4ubuntu3.14.04.5
- policykit-1 - 0.105-4ubuntu3.14.04.5
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.