Ubuntu 5091-1: 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-5.4.0-1024-gkeop 5.4.0-1024.25 linux-image-5.4.0-1047-kvm 5.4.0-1047.49 linux-image-5.4.0-1053-gcp 5.4.0-1053.57 linux-image-5.4.0-1053-gke 5.4.0-1053.56 linux-image-5.4.0-1055-oracle 5.4.0-1055.59 linux-image-5.4.0-1057-aws 5.4.0-1057.60 linux-image-5.4.0-1059-azure 5.4.0-1059.62 linux-image-5.4.0-88-generic 5.4.0-88.99 linux-image-5.4.0-88-generic-lpae 5.4.0-88.99 linux-image-5.4.0-88-lowlatency 5.4.0-88.99 linux-image-aws-lts-20.04 5.4.0.1057.60 linux-image-azure-lts-20.04 5.4.0.1059.57 linux-image-gcp-lts-20.04 5.4.0.1053.63 linux-image-generic 5.4.0.88.92 linux-image-generic-lpae 5.4.0.88.92 linux-image-gke 5.4.0.1053.63 linux-image-gke-5.4 5.4.0.1053.63 linux-image-gkeop 5.4.0.1024.27 linux-image-gkeop-5.4 5.4.0.1024.27 linux-image-kvm 5.4.0.1047.46 linux-image-lowlatency 5.4.0.88.92 linux-image-oem 5.4.0.88.92 linux-image-oem-osp1 5.4.0.88.92 linux-image-oracle-lts-20.04 5.4.0.1055.55 linux-image-virtual 5.4.0.88.92 Ubuntu 18.04 LTS: linux-image-5.4.0-1024-gkeop 5.4.0-1024.25~18.04.1 linux-image-5.4.0-1053-gcp 5.4.0-1053.57~18.04.1 linux-image-5.4.0-1053-gke 5.4.0-1053.56~18.04.1 linux-image-5.4.0-1055-oracle 5.4.0-1055.59~18.04.1 linux-image-5.4.0-1057-aws 5.4.0-1057.60~18.04.1 linux-image-5.4.0-1059-azure 5.4.0-1059.62~18.04.1 linux-image-5.4.0-87-generic 5.4.0-87.98~18.04.1 linux-image-5.4.0-87-generic-lpae 5.4.0-87.98~18.04.1 linux-image-5.4.0-87-lowlatency 5.4.0-87.98~18.04.1 linux-image-aws 5.4.0.1057.40 linux-image-azure 5.4.0.1059.39 linux-image-gcp 5.4.0.1053.39 linux-image-generic-hwe-18.04 5.4.0.87.98~18.04.78 linux-image-generic-lpae-hwe-18.04 5.4.0.87.98~18.04.78 linux-image-gke-5.4 5.4.0.1053.56~18.04.18 linux-image-gkeop-5.4 5.4.0.1024.25~18.04.25 linux-image-lowlatency-hwe-18.04 5.4.0.87.98~18.04.78 linux-image-oem 5.4.0.87.98~18.04.78 linux-image-oem-osp1 5.4.0.87.98~18.04.78 linux-image-oracle 5.4.0.1055.59~18.04.35 linux-image-snapdragon-hwe-18.04 5.4.0.87.98~18.04.78 linux-image-virtual-hwe-18.04 5.4.0.87.98~18.04.78 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-5091-1
CVE-2021-33624, CVE-2021-3679, CVE-2021-37576, CVE-2021-38160,
CVE-2021-38199, CVE-2021-38204
Package Information
https://launchpad.net/ubuntu/+source/linux/5.4.0-88.99 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1057.60 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1059.62 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1053.57 https://launchpad.net/ubuntu/+source/linux-gke/5.4.0-1053.56 https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1024.25 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1047.49 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1055.59 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1057.60~18.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1059.62~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1053.57~18.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1053.56~18.04.1 https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1024.25~18.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-87.98~18.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1055.59~18.04.1