Ubuntu 5161-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: linux-image-5.11.0-1020-kvm 5.11.0-1020.22 linux-image-5.11.0-1022-aws 5.11.0-1022.23 linux-image-5.11.0-1022-azure 5.11.0-1022.23 linux-image-5.11.0-1022-oracle 5.11.0-1022.23 linux-image-5.11.0-1023-gcp 5.11.0-1023.25 linux-image-5.11.0-1023-raspi 5.11.0-1023.25 linux-image-5.11.0-1023-raspi-nolpae 5.11.0-1023.25 linux-image-5.11.0-41-generic 5.11.0-41.45 linux-image-5.11.0-41-generic-64k 5.11.0-41.45 linux-image-5.11.0-41-generic-lpae 5.11.0-41.45 linux-image-5.11.0-41-lowlatency 5.11.0-41.45 linux-image-aws 5.11.0.1022.23 linux-image-azure 5.11.0.1022.23 linux-image-gcp 5.11.0.1023.23 linux-image-generic 5.11.0.41.42 linux-image-generic-64k 5.11.0.41.42 linux-image-generic-lpae 5.11.0.41.42 linux-image-gke 5.11.0.1023.23 linux-image-kvm 5.11.0.1020.21 linux-image-lowlatency 5.11.0.41.42 linux-image-oem-20.04 5.11.0.41.42 linux-image-oracle 5.11.0.1022.23 linux-image-raspi 5.11.0.1023.21 linux-image-raspi-nolpae 5.11.0.1023.21 linux-image-virtual 5.11.0.41.42 Ubuntu 20.04 LTS: linux-image-5.11.0-1022-aws 5.11.0-1022.23~20.04.1 linux-image-5.11.0-1022-azure 5.11.0-1022.23~20.04.1 linux-image-5.11.0-1022-oracle 5.11.0-1022.23~20.04.1 linux-image-5.11.0-1023-gcp 5.11.0-1023.25~20.04.1 linux-image-5.11.0-41-generic 5.11.0-41.45~20.04.1 linux-image-5.11.0-41-generic-64k 5.11.0-41.45~20.04.1 linux-image-5.11.0-41-generic-lpae 5.11.0-41.45~20.04.1 linux-image-5.11.0-41-lowlatency 5.11.0-41.45~20.04.1 linux-image-aws 5.11.0.1022.23~20.04.21 linux-image-azure 5.11.0.1022.23~20.04.22 linux-image-gcp 5.11.0.1023.25~20.04.22 linux-image-generic-64k-hwe-20.04 5.11.0.41.45~20.04.19 linux-image-generic-hwe-20.04 5.11.0.41.45~20.04.19 linux-image-generic-lpae-hwe-20.04 5.11.0.41.45~20.04.19 linux-image-lowlatency-hwe-20.04 5.11.0.41.45~20.04.19 linux-image-oracle 5.11.0.1022.23~20.04.15 linux-image-virtual-hwe-20.04 5.11.0.41.45~20.04.19 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-5161-1
CVE-2021-3655, CVE-2021-3744, CVE-2021-3764, CVE-2021-42252
Package Information
https://launchpad.net/ubuntu/+source/linux/5.11.0-41.45 https://launchpad.net/ubuntu/+source/linux-aws/5.11.0-1022.23 https://launchpad.net/ubuntu/+source/linux-azure/5.11.0-1022.23 https://launchpad.net/ubuntu/+source/linux-gcp/5.11.0-1023.25 https://launchpad.net/ubuntu/+source/linux-kvm/5.11.0-1020.22 https://launchpad.net/ubuntu/+source/linux-oracle/5.11.0-1022.23 https://launchpad.net/ubuntu/+source/linux-raspi/5.11.0-1023.25 https://launchpad.net/ubuntu/+source/linux-aws-5.11/5.11.0-1022.23~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.11/5.11.0-1022.23~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.11/5.11.0-1023.25~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.11/5.11.0-41.45~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.11/5.11.0-1022.23~20.04.1