Ubuntu has published a security notice highlighting vulnerabilities in the Linux Kernel that are affecting multiple products on the 8th-9th of September 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Ubuntu 21.04
Ubuntu 20.04 LTS
Ubuntu 18.04 LTS
Ubuntu 16.04 ESM
Ubuntu 14.04 ESM
For more information about these Ubuntu updates, you can follow these URLs:
https://ubuntu.com/security/notices/USN-5070-1
https://ubuntu.com/security/notices/USN-5071-1
https://ubuntu.com/security/notices/USN-5072-1
https://ubuntu.com/security/notices/USN-5073-1
The Guyana National CIRT recommends that users and administrators review these updates and apply them where necessary.
PDF Download: Ubuntu Security Updates.pdf
References
Ubuntu security updates (10th September 2021). Retrieved from Canadian Centre for Cyber Security.
Ubuntu security updates (8th-9th September 2021). Retrieved from Ubuntu.
https://ubuntu.com/security/notices