Public bug reported:

The update from 5.7.27 to 5.7.28 definitely caused some SSL issues for
one of our production applications. I have an older Python app that uses
SQLAlechemy to connect to MySQL using
https://github.com/farcepest/MySQLdb1, and the latest update caused tons
of _SSL connection error: error:00000001:lib(0):func(0):reason(1)_
errors in my logs, and prevented my application from connecting to the
database, eventually causing the host to be blocked because it hit the
max_connect_error limit.  The same error also occurred when attempting
to use mysql from the command line.

Manually reverting back to all 5.7.27-0ubuntu0.16.04.1 versions resolved
the issue.

Affected client version (library and client): 5.7.28 (Ubuntu 16.04.6)
MySQL Server Version: 5.6.11 (Windows Server 2012)

** Affects: mysql-5.7 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1853636

Title:
  SSL connection errors in 5.7.28

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