Ubuntu 3836-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1025-gcp 4.15.0-1025.26 linux-image-4.15.0-1027-kvm 4.15.0-1027.27 linux-image-4.15.0-1029-raspi2 4.15.0-1029.31 linux-image-4.15.0-42-generic 4.15.0-42.45 linux-image-4.15.0-42-generic-lpae 4.15.0-42.45 linux-image-4.15.0-42-lowlatency 4.15.0-42.45 linux-image-4.15.0-42-snapdragon 4.15.0-42.45 linux-image-gcp 4.15.0.1025.27 linux-image-generic 4.15.0.42.44 linux-image-generic-lpae 4.15.0.42.44 linux-image-gke 4.15.0.1025.27 linux-image-kvm 4.15.0.1027.27 linux-image-lowlatency 4.15.0.42.44 linux-image-raspi2 4.15.0.1029.27 linux-image-snapdragon 4.15.0.42.44 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-3836-1
CVE-2018-18955, CVE-2018-6559
Package Information
https://launchpad.net/ubuntu/+source/linux/4.15.0-42.45 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1025.26 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1027.27 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1029.31