USN-4441-1: MySQL vulnerabilities
Multiple security issues were discovered in MySQL and this update includes
new upstream MySQL versions to fix these issues.
MySQL has been updated to 8.0.21 in Ubuntu 20.04 LTS. Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS have been updated to MySQL 5.7.31.
In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.
Please see the following for more information:
Source: USN-4441-1: MySQL vulnerabilities