USN-3934-1: PolicyKit vulnerability
USN-3934-1: PolicyKit vulnerability 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 relied on the fork() system call in the Linux kernel being atomic. A local attacker could possibly use this issue to gain access to services that have cached authorizations. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 libpolkit-backend-1-0 – 0.105-21ubuntu0.4 policykit-1 – 0.105-21ubuntu0.4 Ubuntu 18.04 LTS libpolkit-backend-1-0 – 0.105-20ubuntu0.18.04.5 policykit-1 – 0.105-20ubuntu0.18.04.5 Ubuntu 16.04 LTS libpolkit-backend-1-0 – 0.105-14.1ubuntu0.5 policykit-1 – 0.105-14.1ubuntu0.5 Ubuntu 14.04 LTS libpolkit-backend-1-0 – 0.105-4ubuntu3.14.04.6 policykit-1 – 0.105-4ubuntu3.14.04.6 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. [ more… ]