Ubuntu 5071-3: Linux kernel (Raspberry Pi) vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1043-raspi 5.4.0-1043.47 linux-image-raspi 5.4.0.1043.78 linux-image-raspi2 5.4.0.1043.78 Ubuntu 18.04 LTS: linux-image-5.4.0-1043-raspi 5.4.0-1043.47~18.04.1 linux-image-raspi-hwe-18.04 5.4.0.1043.46 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-5071-3
https://ubuntu.com/security/notices/USN-5071-1
CVE-2021-22543, CVE-2021-3612
Package Information
https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1043.47 https://launchpad.net/ubuntu/+source/linux-raspi-5.4/5.4.0-1043.47~18.04.1