Apple Releases macOS High Sierra 10.13 Supplemental Update With Fix for APFS Disk Utility Bug and Keychain Vulnerability

Apple today released a supplemental update to macOS High Sierra 10.13, the first update to the macOS High Sierra operating system that was released to the public in late September. The macOS High Sierra 10.13 update comes just over one week after the release of macOS High Sierra.

The new version of macOS High Sierra 10.13 is a free update for all customers who have a compatible machine. The update can be downloaded using the Software Update function in the Mac App Store.

macoshighsierra
The supplemental macOS High Sierra 10.13 update addresses a software vulnerability that could expose the passwords of encrypted Apple File System volumes in plain text in Disk Utility.

Apple has released a support document alongside the Supplemental Update that walks users through the process of protecting their data if macOS High Sierra is showing a password instead of a password hint on an encrypted APFS volume.

Steps include installing the new update, creating an encrypted backup of data for the affected volume, erasing the drive, reformatting to APFS, then APFS (Encrypted), and finally restoring the data that was backed up.

A separate security support document says that the update also fixes a vulnerability that could let a hacker steal the usernames and passwords of accounts stored in Keychain using a malicious third-party app.

And finally, according to the release notes accompanying the update, it also improves installer robustness, fixes a cursor graphic bug in Adobe InDesign, and resolves an issue where messages couldn't be deleted from Yahoo accounts in Mail.

macOS High Sierra introduces a new more modern file system designed for flash storage (APFS), Metal 2, Safari improvements that protect user privacy and prevent autoplay videos, and improvements to several apps like Photos, Mail, Notes, and more.

Top Rated Comments

OldSchoolMacGuy Avatar
46 months ago
Someone will complain about having to install updates. They'd rather have Microsoft which would wait to patch a security issue because it's not part of their update release schedule. There were a number complaining of recent iOS updates in this way.
Score: 16 Votes (Like | Disagree)
Amazing Iceman Avatar
46 months ago
That was the fastest fix I've ever seen..!

How about other meaningful updates?
Score: 15 Votes (Like | Disagree)
phillytim Avatar
46 months ago
At least Apple has been responsive, as the APFS vulnerability was just revealed within the past day.
Score: 15 Votes (Like | Disagree)
bwintx Avatar
46 months ago
Excellent. The bug gets publicized this morning, it's fixed by midday (my time). Can't beat a deal like that. I don't care what the haters say.
Score: 14 Votes (Like | Disagree)
jayducharme Avatar
46 months ago
At least Apple has been responsive, as the APFS vulnerability was just revealed within the past day.
I wouldn't be surprised if Apple knew about this bug before it was publicized and already had been working on a fix.
Score: 11 Votes (Like | Disagree)
WatchTheThrone Avatar
46 months ago
Apple with the quickness!!!!
Score: 8 Votes (Like | Disagree)

Top Stories

siir apple event april 20

Siri Reveals Apple Event Planned for Tuesday, April 20

Tuesday April 13, 2021 12:04 am PDT by
Siri has apparently prematurely revealed that Apple plans to hold an event on Tuesday, April 20, where the company is expected to reveal brand new iPad Pro models and possibly its long-awaited AirTags trackers. Subscribe to the MacRumors YouTube channel for more videos. Upon being asked "When is the next Apple Event," Siri is currently responding with, "The special event is on Tuesday, April...
apple event spring loaded

Apple's 'Spring Loaded' Event Officially Announced for Tuesday, April 20

Tuesday April 13, 2021 9:04 am PDT by
Following an overnight leak by Siri, Apple today officially announced that it will be holding a special "Spring Loaded" event on Tuesday, April 20 at 10:00 a.m. Pacific Time at the Steve Jobs Theater on the Apple Park campus in Cupertino, California. As with all of Apple's 2020 events, the April 2021 event will be a digital-only gathering with no members of the media invited to attend in...
pixel watch prosser leak

Google Pixel Watch Allegedly Leaks with Circular Design, Rumored to Launch in October

Monday April 12, 2021 2:49 am PDT by
Renders of Google's first smartwatch, codenamed "Rohan," have been shared by Jon Prosser, showing that Google plans to adopt a circular design for its flagship wearable watch. Prosser shared the renders in an episode of his YouTube show "Front Page Tech," in which he claims they were made based on marketing material he had seen from a source within Google. The renders show that the Pixel...
Google maps feaure green

Google Maps App for iOS Finally Updated After Four Months

Monday April 12, 2021 10:03 am PDT by
Following the completed rollout of App Privacy labels for its App Store apps, Google today updated the Google Maps app for the first time in four months. Apple in December began requiring all new app submissions and app updates to include App Privacy labels, detailing the data that is collected by the app so consumers know what they're sharing. Google didn't begin implementing App Privacy ...
AppleTV and HomePod Feature

Bloomberg: Apple Working on New Apple TV With Integrated HomePod Speaker and FaceTime Camera

Monday April 12, 2021 3:32 am PDT by
Apple is working on a combined Apple TV with HomePod speaker that has a camera for video calls through a connected television set, according to Bloomberg's Mark Gurman. From the report: The company is working on a product that would combine an Apple TV set-top box with a HomePod speaker and include a camera for video conferencing through a connected TV and other smart-home functions,...
samsung experience 1

Samsung's 'iTest' Lets You Try a Galaxy Device on Your iPhone

Thursday April 8, 2021 12:42 pm PDT by
Samsung has launched "iTest," an interactive website experience that's designed to allow iPhone users to test out Android on a Galaxy device, or "sample the other side," as Samsung puts it. Subscribe to the MacRumors YouTube channel for more videos. The iTest website is being advertised in New Zealand, according to a MacRumors reader who came across the feature. Visiting the iTest website on...
epic iap feature 3

Tim Cook Says App Store Would Become a 'Flea Market' if Third-Party Payment Systems Were Allowed

Monday April 12, 2021 9:41 am PDT by
In a recent interview with the Toronto Star, Apple CEO Tim Cook spoke about a wide variety of topics, ranging from App Tracking Transparency to Apple's ongoing legal battle over App Store policies with Fortnite creator Epic Games. Notably, Cook said that Epic Games' desire for Apple to let developers offer their own payment systems in apps "would make the App Store a flea market":At the...
tim cook toronto star

Tim Cook Says Apple is 'Not Against Digital Advertising' Ahead of iOS 14.5 Launch With App Tracking Transparency

Monday April 12, 2021 8:00 am PDT by
Starting with iOS 14.5, iPadOS 14.5, and tvOS 14.5, Apple will be requiring apps to receive a user's permission to track their activity for targeted advertising purposes, as part of a privacy measure known as App Tracking Transparency. Ahead of App Tracking Transparency being enforced, Apple CEO Tim Cook has participated in a privacy-focused interview with the Toronto Star, telling the...
a13 bionic mockup

Apple Made Sudden Security Changes to its Chips in Fall 2020

Monday April 12, 2021 8:15 am PDT by
Apple made unusual mid-production hardware changes to the A12, A13, and S5 processors in its devices in the fall of 2020 to update the Secure Storage Component, according to Apple Support documents. According to an Apple Support page, spotted by Twitter user Andrew Pantyukhin, Apple changed the Secure Enclave in a number of products in the fall of 2020:Note: A12, A13, S4, and S5 products...
HomePod G4 Feature

Bloomberg: Future HomePod May Feature iPad Connected Via Robotic Arm to Track Users Around The Room During FaceTime Calls

Monday April 12, 2021 3:50 am PDT by
In a report outlining a possible Apple TV with a combined HomePod and camera, Bloomberg's Mark Gurman says that Apple is exploring a future high-end HomePod speaker that could include an iPad connected via a robotic arm that tracks and follows users around a room. From the report: The Cupertino, California-based technology giant, is also mulling the launch of a high-end speaker with a touch ...