Ubuntu 4878-1: 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-5.4.0-1011-gkeop 5.4.0-1011.12 linux-image-5.4.0-1030-raspi 5.4.0-1030.33 linux-image-5.4.0-1034-kvm 5.4.0-1034.35 linux-image-5.4.0-1038-gcp 5.4.0-1038.41 linux-image-5.4.0-1039-aws 5.4.0-1039.41 linux-image-5.4.0-1039-oracle 5.4.0-1039.42 linux-image-5.4.0-1041-azure 5.4.0-1041.43 linux-image-5.4.0-67-generic 5.4.0-67.75 linux-image-5.4.0-67-generic-lpae 5.4.0-67.75 linux-image-5.4.0-67-lowlatency 5.4.0-67.75 linux-image-aws 5.4.0.1039.40 linux-image-azure 5.4.0.1041.39 linux-image-gcp 5.4.0.1038.47 linux-image-generic 5.4.0.67.70 linux-image-generic-lpae 5.4.0.67.70 linux-image-gkeop 5.4.0.1011.14 linux-image-gkeop-5.4 5.4.0.1011.14 linux-image-kvm 5.4.0.1034.32 linux-image-lowlatency 5.4.0.67.70 linux-image-oem 5.4.0.67.70 linux-image-oem-osp1 5.4.0.67.70 linux-image-oracle 5.4.0.1039.36 linux-image-raspi 5.4.0.1030.65 linux-image-raspi2 5.4.0.1030.65 linux-image-virtual 5.4.0.67.70 Ubuntu 18.04 LTS: linux-image-5.4.0-1011-gkeop 5.4.0-1011.12~18.04.2 linux-image-5.4.0-1030-raspi 5.4.0-1030.33~18.04.1 linux-image-5.4.0-1037-gke 5.4.0-1037.39~18.04.1 linux-image-5.4.0-1038-gcp 5.4.0-1038.41~18.04.1 linux-image-5.4.0-1039-aws 5.4.0-1039.41~18.04.1 linux-image-5.4.0-1039-oracle 5.4.0-1039.42~18.04.1 linux-image-5.4.0-1041-azure 5.4.0-1041.43~18.04.1 linux-image-5.4.0-67-generic 5.4.0-67.75~18.04.1 linux-image-5.4.0-67-generic-lpae 5.4.0-67.75~18.04.1 linux-image-5.4.0-67-lowlatency 5.4.0-67.75~18.04.1 linux-image-aws 5.4.0.1039.23 linux-image-aws-edge 5.4.0.1039.23 linux-image-azure 5.4.0.1041.21 linux-image-azure-edge 5.4.0.1041.21 linux-image-gcp 5.4.0.1038.25 linux-image-gcp-edge 5.4.0.1038.25 linux-image-generic-hwe-18.04 5.4.0.67.75~18.04.62 linux-image-generic-lpae-hwe-18.04 5.4.0.67.75~18.04.62 linux-image-gke-5.4 5.4.0.1037.39~18.04.5 linux-image-gkeop-5.4 5.4.0.1011.12~18.04.12 linux-image-lowlatency-hwe-18.04 5.4.0.67.75~18.04.62 linux-image-oem 5.4.0.67.75~18.04.62 linux-image-oem-osp1 5.4.0.67.75~18.04.62 linux-image-oracle 5.4.0.1039.42~18.04.22 linux-image-raspi-hwe-18.04 5.4.0.1030.33 linux-image-snapdragon-hwe-18.04 5.4.0.67.75~18.04.62 linux-image-virtual-hwe-18.04 5.4.0.67.75~18.04.62 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-4878-1
CVE-2020-36158, CVE-2021-20239, CVE-2021-3178, CVE-2021-3347
Package Information
https://launchpad.net/ubuntu/+source/linux/5.4.0-67.75 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1039.41 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1041.43 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1038.41 https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1011.12 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1034.35 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1039.42 https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1030.33 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1039.41~18.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.4/5.4.0-1041.43~18.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.4/5.4.0-1038.41~18.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.4/5.4.0-1037.39~18.04.1 https://launchpad.net/ubuntu/+source/linux-gkeop-5.4/5.4.0-1011.12~18.04.2 https://launchpad.net/ubuntu/+source/linux-hwe-5.4/5.4.0-67.75~18.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.4/5.4.0-1039.42~18.04.1 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1030.33~18.04.1