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Ubuntu 21.04 USN-4980-1: PolicyKit Privilege Escalation Vulnerability

The system could be made to run programs as an administrator.. =========================================================================Ubuntu Security Notice USN-4980-1 June 03, 2021 policykit-1 vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS Summary: The system could be made to run programs as an administrator. Software Description: - 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: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: libpolkit-agent-1-0 0.105-30ubuntu0.1 libpolkit-gobject-1-0 0.105-30ubuntu0.1 policykit-1 0.105-30ubuntu0.1 Ubuntu 20.10: libpolkit-agent-1-0 0.105-29ubuntu0.1 libpolkit-gobject-1-0 0.105-29ubuntu0.1 policykit-1 0.105-29ubuntu0.1 Ubuntu 20.04 LTS: libpolkit-agent-1-0 0.105-26ubuntu1.1 libpolkit-gobject-1-0 0.105-26ubuntu1.1 policykit-1 0.105-26ubuntu1.1 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4980-1 CVE-2021-3560 Package Information: https://launchpad.net/ubuntu/+source/policykit-1/0.105-30ubuntu0.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-29ubuntu0.1 https://launchpad.net/ubuntu/+source/policykit-1/0.105-26ubuntu1.1 . The Ubuntu Security Notice USN-4981-1 addresses a critical vulnerability in the OpenSSH protocol that could allow unauthorized access to secure shell sessions.. UbuntuSecurity Notice, policykit issue, privilege escalation risk. . Severity: Important. LinuxSecurity.com Team

Jun 03, 2021 •Important Ubuntu