--- title: 'USN-4980-1: polkit vulnerability | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-4980-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-4980-1 --- # USN-4980-1: polkit vulnerability Publication date 3 June 2021 Overview The system could be made to run programs as an administrator. Releases [21.04](https://ubuntu.com/security/notices?release=hirsute) [20.10](https://ubuntu.com/security/notices?release=groovy) [20.04 LTS](https://ubuntu.com/security/notices?release=focal) --- Open side navigation ## Packages * [policykit-1](https://ubuntu.com/security/cves?package=policykit-1) - framework for managing administrative policies and privileges ## Details Kevin Backhouse discovered that polkit incorrectly handled errors in the polkit\_system\_bus\_name\_get\_creds\_sync function. A local attacker could possibly use this issue to escalate privileges. ## Update instructions After a standard system update you need to reboot your computer to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 21.04 hirsute | [libpolkit-agent-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-30ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-30ubuntu0.1) | | | | [libpolkit-gobject-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-30ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-30ubuntu0.1) | | | | [policykit-1](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-30ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-30ubuntu0.1) | | | | 20.10 groovy | [libpolkit-agent-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-29ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-29ubuntu0.1) | | | | [libpolkit-gobject-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-29ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-29ubuntu0.1) | | | | [policykit-1](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-29ubuntu0.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-29ubuntu0.1) | | | | 20.04 LTS focal | [libpolkit-agent-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-26ubuntu1.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-26ubuntu1.1) | | | | [libpolkit-gobject-1-0](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-26ubuntu1.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-26ubuntu1.1) | | | | [policykit-1](https://launchpad.net/ubuntu/+source/policykit-1) –  [0.105-26ubuntu1.1](https://launchpad.net/ubuntu/+source/policykit-1/0.105-26ubuntu1.1) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2021-3560](https://ubuntu.com/security/CVE-2021-3560)