Ubuntu 4708-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-201-generic 4.4.0-201.233 linux-image-4.4.0-201-generic-lpae 4.4.0-201.233 linux-image-4.4.0-201-lowlatency 4.4.0-201.233 linux-image-4.4.0-201-powerpc-e500mc 4.4.0-201.233 linux-image-4.4.0-201-powerpc-smp 4.4.0-201.233 linux-image-4.4.0-201-powerpc64-emb 4.4.0-201.233 linux-image-4.4.0-201-powerpc64-smp 4.4.0-201.233 linux-image-generic 4.4.0.201.207 linux-image-generic-lpae 4.4.0.201.207 linux-image-lowlatency 4.4.0.201.207 linux-image-powerpc-e500mc 4.4.0.201.207 linux-image-powerpc-smp 4.4.0.201.207 linux-image-powerpc64-emb 4.4.0.201.207 linux-image-powerpc64-smp 4.4.0.201.207 linux-image-virtual 4.4.0.201.207 Ubuntu 14.04 ESM: linux-image-4.4.0-201-generic 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-generic-lpae 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-lowlatency 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-powerpc-e500mc 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-powerpc-smp 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-powerpc64-emb 4.4.0-201.233~14.04.1 linux-image-4.4.0-201-powerpc64-smp 4.4.0-201.233~14.04.1 linux-image-generic-lpae-lts-xenial 4.4.0.201.176 linux-image-generic-lts-xenial 4.4.0.201.176 linux-image-lowlatency-lts-xenial 4.4.0.201.176 linux-image-powerpc-e500mc-lts-xenial 4.4.0.201.176 linux-image-powerpc-smp-lts-xenial 4.4.0.201.176 linux-image-powerpc64-emb-lts-xenial 4.4.0.201.176 linux-image-powerpc64-smp-lts-xenial 4.4.0.201.176 linux-image-virtual-lts-xenial 4.4.0.201.176 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-4708-1
CVE-2018-13093, CVE-2019-19813, CVE-2019-19816, CVE-2020-25669,
CVE-2020-27777
Package Information
https://launchpad.net/ubuntu/+source/linux/4.4.0-201.233