A MySQL regression update has been released for Ubuntu Linux 20.04, 22.04 LTS, and 22.10.

USN-5823-3: MySQL regression

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Ubuntu Security Notice USN-5823-3
January 29, 2023

mysql-5.7, mysql-8.0 regression
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

USN 5823-1 introduced a regression in MySQL.

Software Description:
- mysql-8.0: MySQL database

Details:

USN-5823-1 fixed vulnerabilities in MySQL. Unfortunately, 8.0.32 introduced
a regression in MySQL Router preventing connections from PyMySQL. This
update reverts most of the changes in MySQL Router to 8.0.31 until a proper
fix can be found.

We apologize for the inconvenience.

Original advisory details:

Multiple security issues were discovered in MySQL and this update includes
new upstream MySQL versions to fix these issues.
MySQL has been updated to 8.0.32 in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and
Ubuntu 22.10. Ubuntu 18.04 LTS has been updated to MySQL 5.7.41.
In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.
Please see the following for more information:
https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-41.html
https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-32.html
https://www.oracle.com/security-alerts/cpujan2023.html

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
mysql-server-8.0 8.0.32-0ubuntu0.22.10.2

Ubuntu 22.04 LTS:
mysql-server-8.0 8.0.32-0ubuntu0.22.04.2

Ubuntu 20.04 LTS:
mysql-server-8.0 8.0.32-0ubuntu0.20.04.2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5823-3
https://ubuntu.com/security/notices/USN-5823-1
https://launchpad.net/bugs/2003835

Package Information:
https://launchpad.net/ubuntu/+source/mysql-8.0/8.0.32-0ubuntu0.22.10.2
https://launchpad.net/ubuntu/+source/mysql-8.0/8.0.32-0ubuntu0.22.04.2
https://launchpad.net/ubuntu/+source/mysql-8.0/8.0.32-0ubuntu0.20.04.2