Mojave Security Update 2021-004 broke Kerberos for me

I have a local account, but if I log out of the computer and try to log back in, the login screen gets stuck, and I have to force a restart.

Also, the Screen Sharing app will hang when I try to connect to a remote Mac. Again, I can only fix it if I restart my Mac. However, if the Mac goes to sleep for a few hours and then I try to connect to one of the remote Macs, it will freeze again.

Charles Wirth's link on tidbits does work. There is one modification I would suggest. It is not necessary to delete the lines from the files, rather all that is necessary is to comment them out with a hash (#) at the start of any lines you want the OS to ignore.

It's more to do with the computer industries obsession with rapid release cycles. Current IT guidance is to be at current release minus one or minus two. Anything beyond N-2 is losing vendor and manufacturer support. In a few months, Monterey will push Mojave to being N-3 and at that point, Apple likely won't release any more updates for it.

It is not just Apple, most all operating system vendors and software application developers have increased the pace of their releases.

Pace increase. Not a fan. It's not for the betterment of usability, compatibility or productivity. Maybe security, but only maybe. Heck, when one can't even log in or use the computer, that's pretty darn secure!

I don't really have a problem with the rapid release cycle. What I do have a problem with is the obsession with the next release while completely ignoring what the last release just broke, especially when it's significant.

11.5 released for Big Sur and 2021-004 for Catalina as well. I don't have many Mojave systems left that are actively online. Most have been upgraded to Catalina. But if I come across one I'll let you know if it fixes the Kerberos issue unless someone else beats me to it.

I just updated a Mojave machine that was affected by the last update and... the Kerberos issue seems to be fixed at first glance. Finally!

I just did a quick test to see if I could connect to a server via SMB and it worked, so I'm assuming the underlying issue is fixed. If not I'll report back.

When I get a chance I'll update a Big Sur machine to 11.5 and see if DDNS registration is working now too.

Hi, I tested upgrading to 2021-005 on an iMac that had the 2021-004 upgrade, and it seems that the login + network share issue is now solved! Any other positive feedback?

It's unfortunate that Apple didn't talk about the issue (and its resolution) in the release notes v_v ...

Mojave 2021-005 released earlier today, the info page went live just about 3 minutes ago: https://support.apple.com/en-us/HT212603

Nothing mentioned about Kerberos...

Great work my friend, take care. :)

Thanks! :)👍

You're welcome.

Our unupdated Macs still ask us to do that update, but it's probably because the update is cached on our server. The documentation has not been updated yet on Apple's website, though.