For Mac computers, the Safari web browser is installed and updated as part of macOS. For PCs, Safari updates are no longer available. How to Update Google Chrome on Mac and Windows. Whether you're a Mac or Windows user, the first step is to select the More icon (a vertical line of circles) from the top-right corner of Chrome. Google has confirmed a recent update to Chrome was to patch a zero-day issue in the popular browser, an exploit that was actively used in attacks, and has recommended all Chrome users on Mac.

If you use Chrome for Mac, you’ll want to be sure it’s updated today: Google has just fixed a vulnerability that was being actively exploited by North Korean hackers …

Google characterizes it as a high-risk flaw.

This update includes 1 security fix. Please see the Chrome Security Page for more information.

[$TBD][1170176] High CVE-2021-21148: Heap buffer overflow in V8. Reported by Mattias Buelens on 2021-01-24

Google is aware of reports that an exploit for CVE-2021-21148 exists in the wild.

CNET reports on the background, which saw security researchers as one of the targets.

The zero-day, which was assigned the identifier of CVE-2021-21148, was described as a “heap overflow” memory corruption bug in the V8 JavaScript engine.

Google said the bug was exploited in attacks in the wild before a security researcher named Mattias Buelens reported the issue to its engineers on January 24.

Two days after Buelens’ report, Google’s security team published a report about attacks carried out by North Korean hackers against the cyber-security community.

Some of these attacks consisted of luring security researchers to a blog where the attackers exploited browser zero-days to run malware on researchers’ systems.

While it sounds like this was a targeted state-sponsored attack, once a zero-day exploit is revealed, it is likely to be used by others in more general attacks. Prompt updating is therefore always recommended.

You can update by going to Chrome > About Google Chrome. You’ll also find there an option to switch on automatic updates, which Google recommends.

We can also soon expect a security update from Apple to fix a Sudo bug that was also a heap overflow issue.

Update Chrome Macbook Pro

The vulnerability, disclosed last week as CVE-2021-3156 (aka Baron Samedit) by security researchers from Qualys, impacts Sudo, an app that allows admins to delegate limited root access to other users. Qualys researchers discovered that they could trigger a “heap overflow” bug in the Sudo app to change the current user’s low-privileged access to root-level commands, granting the attacker access to the whole system.

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How Do You Update Chrome On A Mac

Use Software Update

1. Choose System Preferences from the Apple menu , then click Software Update to check for updates.
   
2. If any updates are available, click the Update Now button to install them. Or click “More info” to see details about each update and select specific updates to install. You might be asked to enter your administrator password.
   
3. When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date. That includes Safari, Music, Photos, Books, Messages, Mail, Calendar, and FaceTime.
4. To automatically install future updates, including for apps that you got from the App Store, select “Automatically keep my Mac up to date.” Your Mac will notify you when updates require it to restart, so you can always choose to install those later.

Update the software on your iPhone, iPad, or iPod touch

Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS or iPadOS.

Learn more

How To Upgrade Chrome On Macbook Air

• Learn how to get updates for earlier versions of macOS that don't include Software Update preferences.
• You can also use the App Store to update apps or redownload apps that came from the App Store.
• Learn which macOS your Mac is using and how to upgrade to the latest macOS.
• When your Mac is connected to a Personal Hotspot, large updates don't download automatically.