Hi,
Zentyal uses Perl not Java, so, all the components that Zentyal has developed are not affected to the log4j vulnerability.
Aparently, if the package '
apache-log4j2' wasn't installed by any dependency, it is nothing to worry about.
*
https://ubuntu.com/security/notices/USN-5192-1--
“This world is ours, and by the Holy Light we will keep it safe, now and forever".