Ubuntu 4889-1: Linux kernel vulnerabilities
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: linux-image-3.13.0-185-generic 3.13.0-185.236 linux-image-3.13.0-185-generic-lpae 3.13.0-185.236 linux-image-3.13.0-185-lowlatency 3.13.0-185.236 linux-image-4.4.0-206-generic 4.4.0-206.238~14.04.1 linux-image-4.4.0-206-generic-lpae 4.4.0-206.238~14.04.1 linux-image-4.4.0-206-lowlatency 4.4.0-206.238~14.04.1 linux-image-generic 3.13.0.185.194 linux-image-generic-lpae 3.13.0.185.194 linux-image-generic-lpae-lts-xenial 4.4.0.206.179 linux-image-generic-lts-xenial 4.4.0.206.179 linux-image-generic-pae 3.13.0.185.194 linux-image-lowlatency 3.13.0.185.194 linux-image-lowlatency-lts-xenial 4.4.0.206.179 linux-image-lowlatency-pae 3.13.0.185.194 linux-image-server 3.13.0.185.194 linux-image-virtual 3.13.0.185.194 linux-image-virtual-lts-xenial 4.4.0.206.179 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-4889-1
CVE-2021-27363, CVE-2021-27364, CVE-2021-27365
Package Information