Apple Releases macOS High Sierra 10.13.4 Security Update

Apple today released a new security update for macOS High Sierra 10.13.4, which comes nearly one month after the first version of macOS High Sierra 10.13.4 was released to the public.

macoshighsierra10134
The new macOS High Sierra security update can be downloaded directly from the Mac App Store or through the Software Update function in the Mac App Store on all compatible Macs that are already running macOS High Sierra.

According to Apple's release notes, Security Update 2018-001 is recommended for all users and is meant to improve the security of macOS. The update addresses two security vulnerabilities related to Crash Reporter and LinkPresentation, both of which could be used maliciously to gain access to a Mac. A Safari 11.1 update is also included, with fixes for WebKit vulnerabilities.

Additional information on what's included in the security update can be found in the accompanying support document.

Top Rated Comments

keysofanxiety Avatar
55 months ago
Wow, 1GB. That’s one heck of a security update.
Score: 9 Votes (Like | Disagree)
flszen Avatar
55 months ago
Does DisplayLink's sketchy driver work again?
Score: 7 Votes (Like | Disagree)
redheeler Avatar
55 months ago
It's good that Apple didn't decide to wait until 10.13.5 to fix these vulnerabilities. My only concern is that El Capitan and Sierra have yet to receive the update.
[doublepost=1524591551][/doublepost]
Oh no just with every update for about a year now, my Mac will not boot up afterwards unless I restore it from a backup ...
This definitely isn't normal. I'd recommend doing a fresh install of the latest version and restoring only the apps / files you need from backup.
Score: 6 Votes (Like | Disagree)
keysofanxiety Avatar
55 months ago

And WHERE did you find THAT info?
Well, when the article was posted I eagerly opened the App Store on my Mac and began the download, licking my lips in anticipation for the newest OS patch.

As it began downloading, I noticed the size of the update was exactly 1.0GB. My face pouted slightly and I gave my stubble a quizzical stroke, noting at that point that I should probably invest in a new razor.

"Security Updates which are in the same x.x.x version are historically quite small", I told myself. "They're not normally 1GB. How odd!"

As if by magic, the trackpad gravitated back to the MacRumors Safari tab and I publicly mused my confusion in the very comment you are quoting.

Does this help?
Score: 5 Votes (Like | Disagree)
TheBensonBoy Avatar
55 months ago
Wow, 1GB. That’s one heck of a security update.
Surely they also fixed a few bugs that they know are there, so they were embarrassed to mention. Or they didn't fix it and the software lately is just that bad.
Score: 5 Votes (Like | Disagree)
ThisIsNotMe Avatar
55 months ago
Fix DisplayLink yet?
Score: 5 Votes (Like | Disagree)

Popular Stories

macbook air m2

Exclusive: Apple Plans to Launch MacBook Air With M2 Chip on July 15

Wednesday June 29, 2022 5:23 pm PDT by
The redesigned MacBook Air with the all-new M2 Apple silicon chip will be available for customers starting Friday, July 15, MacRumors has learned from a retail source. The new MacBook Air was announced and previewed during WWDC earlier this month, with Apple stating availability will begin in July. The MacBook Air features a redesigned body that is thinner and lighter than the previous...
Mac Studio IO

Apple Begins Selling Refurbished Mac Studio Models

Thursday June 30, 2022 7:42 pm PDT by
Apple today began selling refurbished Mac Studio models for the first time in the United States, Canada, and select European countries, such as Belgium, Germany, Ireland, Spain, Switzerland, the Netherlands, and the United Kingdom. In the United States, two refurbished Mac Studio configurations are currently available, including one with the M1 Max chip (10-core CPU and 24-core GPU) for...
top stories 2jul2022

Top Stories: M2 MacBook Air Release Date, New HomePod Rumor, and More

Saturday July 2, 2022 6:00 am PDT by
The M2 MacBook Pro has started making its way into customers' hands and we're learning more about how it performs in a variety of situations, but all eyes are really on the upcoming M2 MacBook Air which has seen a complete redesign and should be arriving in a couple of weeks. Other top stories this week included a host of product rumors including additional M2 and even M3 Macs, an updated...
original iphone 2007

15 Years Ago Today, the iPhone Went On Sale

Wednesday June 29, 2022 4:43 am PDT by
Fifteen years ago to this day, the iPhone, the revolutionary device presented to the world by the late Steve Jobs, officially went on sale. The first iPhone was announced by Steve Jobs on January 9, 2007, and went on sale on June 29, 2007. "An iPod, a phone, an internet mobile communicator... these are not three separate devices," Jobs famously said. "Today, Apple is going to reinvent the...
rootbug

Major macOS High Sierra Bug Allows Full Admin Access Without Password - How to Fix [Updated]

Tuesday November 28, 2017 12:33 pm PST by
There appears to be a serious bug in macOS High Sierra that enables the root superuser on a Mac with a blank password and no security check. The bug, discovered by developer Lemi Ergin, lets anyone log into an admin account using the username "root" with no password. This works when attempting to access an administrator's account on an unlocked Mac, and it also provides access at the login...