Ubuntu 4425-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1020-aws 5.4.0-1020.20 linux-image-5.4.0-1021-gcp 5.4.0-1021.21 linux-image-5.4.0-1021-oracle 5.4.0-1021.21 linux-image-5.4.0-30-generic 5.4.0-30.34 linux-image-5.4.0-42-generic 5.4.0-42.46 linux-image-5.4.0-42-generic-lpae 5.4.0-42.46 linux-image-5.4.0-42-lowlatency 5.4.0-42.46 linux-image-aws 5.4.0.1020.21 linux-image-gcp 5.4.0.1021.19 linux-image-generic 5.4.0.30.37 linux-image-generic-lpae 5.4.0.42.45 linux-image-gke 5.4.0.1021.19 linux-image-kvm 5.4.0.1020.19 linux-image-lowlatency 5.4.0.42.45 linux-image-oem 5.4.0.42.45 linux-image-oem-osp1 5.4.0.42.45 linux-image-oracle 5.4.0.1021.19 linux-image-virtual 5.4.0.30.37 Ubuntu 18.04 LTS: linux-image-5.4.0-1015-raspi 5.4.0-1015.15~18.04.1 linux-image-5.4.0-42-generic 5.4.0-42.46~18.04.1 linux-image-5.4.0-42-generic-lpae 5.4.0-42.46~18.04.1 linux-image-5.4.0-42-lowlatency 5.4.0-42.46~18.04.1 linux-image-generic-hwe-18.04 5.4.0.42.46~18.04.35 linux-image-generic-lpae-hwe-18.04 5.4.0.42.46~18.04.35 linux-image-gkeop-5.4 5.4.0.42.46~18.04.35 linux-image-lowlatency-hwe-18.04 5.4.0.42.46~18.04.35 linux-image-raspi-hwe-18.04 5.4.0.1015.19 linux-image-snapdragon-hwe-18.04 5.4.0.42.46~18.04.35 linux-image-virtual-hwe-18.04 5.4.0.42.46~18.04.35 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-4425-1
CVE-2019-16089, CVE-2019-19462, CVE-2020-11935, CVE-2020-15780
Package Information
https://launchpad.net/ubuntu/+source/linux/5.4.0-42.46 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1020.20 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1021.21 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1020.20 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1021.21 https://launchpad.net/ubuntu/+source/linux-riscv/5.4.0-30.34 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-42.46~18.04.1 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1015.15~18.04.1