Comment 1 for bug 1683237

Thank you for taking the time to report this bug and helping to make Ubuntu
better. Thank you also for reporting this to Debian and finding the
upstream record.

If you need a fix for the bug in previous versions of Ubuntu, then the
relevant procedure is documented here:

https://wiki.ubuntu.com/StableReleaseUpdates

However, uploading point releases is generally not done to existing
releases in an effort to prevent additional regressions. Because
we currently do not have a delta with Debian, ideally we would sync over
from Debian directly and get the fix. However, with the existing freeze
this may not happen right away. I have added this to the server-next
backlog to get looked at during the next release.

Also I believe this is the commit to fix:
https://github.com/krb5/krb5/commit/bc7594058011c2f9711f24af4fa15a421a8d5b62