========================================================================== Ubuntu Security Notice USN-3861-2 January 16, 2019 policykit-1 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: PolicyKit could allow unintended access. Software Description: - policykit-1: framework for managing administrative policies and privileges Details: USN-3861-1 fixed a vulnerability in PolicyKit. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory 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 12.04 ESM: libpolkit-backend-1-0 0.104-1ubuntu1.4 policykit-1 0.104-1ubuntu1.4 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3861-2 https://usn.ubuntu.com/usn/usn-3861-1 CVE-2018-19788