The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: mysql-server-5.7 5.7.42-0ubuntu0.16.04.1+esm1 This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.
https://ubuntu.com/security/notices/USN-6060-2
https://ubuntu.com/security/notices/USN-6060-1
CVE-2023-21912, CVE-2023-21980