========================================================================== Ubuntu Security Notice USN-5252-1 January 25, 2022 policykit-1 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: policykit-1 could be made to run programs as an administrator. Software Description: - policykit-1: framework for managing administrative policies and privileges Details: It was discovered that the PolicyKit pkexec tool incorrectly handled command-line arguments. A local attacker could use this issue to escalate privileges to an administrator. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: policykit-1 0.105-31ubuntu0.1 Ubuntu 20.04 LTS: policykit-1 0.105-26ubuntu1.2 Ubuntu 18.04 LTS: policykit-1 0.105-20ubuntu0.18.04.6 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5252-1 CVE-2021-4034 Package Information: https://launchpad.net/ubuntu/+source/policykit-1/0.105-31ubuntu0.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-26ubuntu1.2 https://launchpad.net/ubuntu/+source/policykit-1/0.105-20ubuntu0.18.04.6