========================================================================== Ubuntu Security Notice USN-3730-1 August 06, 2018 lxc vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS Summary: LXC would allow unintended access to files. Software Description: - lxc: Linux Containers userspace tools Details: Matthias Gerstner discovered that LXC incorrectly handled the lxc-user-nic utility. A local attacker could possibly use this issue to open arbitrary files. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: lxc 3.0.1-0ubuntu1~18.04.2 After a standard system update you need to restart LXC containers to make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3730-1 CVE-2018-6556 Package Information: https://launchpad.net/ubuntu/+source/lxc/3.0.1-0ubuntu1~18.04.2