macOS 10.15.7 supplementary update - for a new one

macOS Catalina 10.15.7 update

We already had the end of September a report on exactly this version number. At the time, I was still speculating that this might be the last update before macOS Big Sur. Far from it, because Apple had screwed up something massive with the update and a process that was supposed to protect the Mac from malware went amok. The result: The Mac became almost unusable for many users because the CPU load exceeded 100%.

As a result, a lot of reader comments came in and we had to first a little guide to solving these problems . write

The update to macOS 10.15.7 should be installed in any case, as it is a security update.

The update to macOS 10.15.7 should be installed in any case, as it is a security update.

MacOS 10.15.7 supplementary update

In any case, I'm a bit surprised that Apple throws an update for Catalina into the ring shortly before Big Sur. But I think there were still Mac users struggling with the annoyances of the last update. To "cure" their Macs, there is probably the "supplementary update 10.15.7". I very much hope that this time you have checked carefully that everything goes through properly.

As a note about this update, Apple offers us this note:

The macOS Catalina 10.15.7 add-on update is recommended for all users and improves the security of macOS.

Changelog for the update

Only the changelog that Apple provides for the update offers a little more information. There is no mention of the correction of their mistake:

  • FontParser
    • Available for: macOS Catalina 10.15.7
    • Impact: Processing a maliciously crafted font may lead to arbitrary code execution. Apple is aware of reports that an exploit for this issue exists in the wild.
    • Description: A memory corruption issue was addressed with improved input validation.
    • CVE-2020-27930: Google Project Zero
  • Kernel
    • Available for: macOS Catalina 10.15.7
    • Impact: A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
    • Description: A type confusion issue was addressed with improved state handling.
    • CVE-2020-27932: Google Project Zero
  • Kernel
    • Available for: macOS Catalina 10.15.7
    • Impact: A malicious application may be able to disclose kernel memory. Apple is aware of reports that an exploit for this issue exists in the wild.
    • Description: A memory initialization issue was addressed.
    • CVE-2020-27950: Google Project Zero

Install update? Yes!

The update went through without any problems for me and the Mac did not warm up through wild processes afterwards. Everything as before ...

If you want to install the update and your Mac has not yet suggested it itself, you can do it at System Settings > software update search and start.

You have my thumbs up anyway. But I would be happy if you leave your experiences briefly as a comment. The last time everything was great for me too, but there were problems with a lot of readers.

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4 comments

  1. Simon says:

    Good evening Jens,
    yes, there were no problems with the update on my Mac this time either. I noticed that my TM backup was no longer found on the NAS after the update.
    Here I had to adjust the rights?!? The group membership of the user in the directory was no longer sufficient. Only when my TM user received direct rights to the folder on the NAS did TM continue?!?
    Coincidence? Individual fate? No idea! Maybe it will help someone :-)

    VG

    • Jen Kleinholz says:

      Hello Simon! Thanks for the feedback. That is interesting. I didn't get any feedback from my TM ... But it also backs up directly to a local disk and not to a NAS. Maybe that's the difference. VG!

  2. Thomas says:

    Hello Jens, my Mac Mini (2014, 1 TB SSD retrofitted by Gravis) is not able to install this update. So in the last 95% of the installation process this hangs up. I have already re-imported the OS and then tried an update, then removed all peripherals. If nothing helps ... it looks like I cannot update the computer with this function update. I haven't found a way ... and at least I come from software development :-(

    • Jen Kleinholz says:

      Hello Thomas! Well, I only have two tips, both of which are very vague: 1. Restart your Mac (you have probably already done it) and 2. with the app "KnockKnock"let's see what drivers from companies other than Apple are installed and deactivate them if necessary and then try the update again. And the last tip: just wait until macOS Big Sur is out. Then you no longer need the update - but probably have other problems.: D

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