Ubuntu 14.04 ESM: USN-4211-2 Critical: Linux Kernel DoS Risks

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: linux-image-4.4.0-1059-aws 4.4.0-1059.63 linux-image-4.4.0-170-generic 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-generic-lpae 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-lowlatency 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-powerpc-e500mc 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-powerpc-smp 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-powerpc64-emb 4.4.0-170.199~14.04.1 linux-image-4.4.0-170-powerpc64-smp 4.4.0-170.199~14.04.1 linux-image-aws 4.4.0.1059.60 linux-image-generic-lpae-lts-xenial 4.4.0.170.149 linux-image-generic-lts-xenial 4.4.0.170.149 linux-image-lowlatency-lts-xenial 4.4.0.170.149 linux-image-powerpc-e500mc-lts-xenial 4.4.0.170.149 linux-image-powerpc-smp-lts-xenial 4.4.0.170.149 linux-image-powerpc64-emb-lts-xenial 4.4.0.170.149 linux-image-powerpc64-smp-lts-xenial 4.4.0.170.149 linux-image-virtual-lts-xenial 4.4.0.170.149 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.