Ubuntu 3220-1: Linux kernel vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-1005-gke 4.4.0-1005.6 linux-image-4.4.0-1046-raspi2 4.4.0-1046.53 linux-image-4.4.0-1050-snapdragon 4.4.0-1050.54 linux-image-4.4.0-66-generic 4.4.0-66.87 linux-image-4.4.0-66-generic-lpae 4.4.0-66.87 linux-image-4.4.0-66-lowlatency 4.4.0-66.87 linux-image-4.4.0-66-powerpc-e500mc 4.4.0-66.87 linux-image-4.4.0-66-powerpc-smp 4.4.0-66.87 linux-image-4.4.0-66-powerpc64-emb 4.4.0-66.87 linux-image-4.4.0-66-powerpc64-smp 4.4.0-66.87 linux-image-generic 4.4.0.66.70 linux-image-generic-lpae 4.4.0.66.70 linux-image-gke 4.4.0.1005.5 linux-image-lowlatency 4.4.0.66.70 linux-image-powerpc-e500mc 4.4.0.66.70 linux-image-powerpc-smp 4.4.0.66.70 linux-image-powerpc64-emb 4.4.0.66.70 linux-image-powerpc64-smp 4.4.0.66.70 linux-image-raspi2 4.4.0.1046.45 linux-image-snapdragon 4.4.0.1050.42 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References
https://ubuntu.com/security/notices/USN-3220-1
CVE-2017-2636
Package Information
https://launchpad.net/ubuntu/+source/linux/4.4.0-66.87 https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1005.6 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1046.53 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1050.54