Ubuntu 4006-1: Linux kernel vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: linux-image-4.18.0-1012-gcp 4.18.0-1012.13 linux-image-4.18.0-1013-kvm 4.18.0-1013.13 linux-image-4.18.0-1015-raspi2 4.18.0-1015.17 linux-image-4.18.0-1017-aws 4.18.0-1017.19 linux-image-4.18.0-21-generic 4.18.0-21.22 linux-image-4.18.0-21-generic-lpae 4.18.0-21.22 linux-image-4.18.0-21-lowlatency 4.18.0-21.22 linux-image-4.18.0-21-snapdragon 4.18.0-21.22 linux-image-aws 4.18.0.1017.17 linux-image-gcp 4.18.0.1012.12 linux-image-generic 4.18.0.21.22 linux-image-generic-lpae 4.18.0.21.22 linux-image-gke 4.18.0.1012.12 linux-image-kvm 4.18.0.1013.13 linux-image-lowlatency 4.18.0.21.22 linux-image-raspi2 4.18.0.1015.12 linux-image-snapdragon 4.18.0.21.22 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-4006-1
CVE-2019-11191
Package Information
https://launchpad.net/ubuntu/+source/linux/4.18.0-21.22 https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1017.19 https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1012.13 https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1013.13 https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1015.17