Ubuntu has published a security advisory, highlighting vulnerabilities in multiple products on 19th July, 2021. It is recommended that you take the necessary precautions by ensuring your products are always updated.
Ubuntu 20.04 LTS
Ubuntu 18.04 LTS
Ubuntu 16.04 ESM
For more information on these Ubuntu updates you can follow this URL:
https://ubuntu.com/security/notices/LSN-0078-1
The Guyana National CIRT recommends that users and administrators review this update and apply it where necessary.
PDF Dowload: Ubuntu Releases Security Updates for Multiple Products.pdf
References
Ubuntu releases security updates (19th July, 2021). Retrieved from Canadian Centre for Cyber Security
Ubuntu releases security updates (19th July, 2021). Retrieved from Ubuntu
https://ubuntu.com/security/notices