14 New 0-Day Vulnerabilities in Chrome OS – Update Your Chrome OS ASAP

There is an advisory from Google for those who have been using Chrome OS. In the advisory, Google mentioned 14 new 0-day vulnerabilities in Chrome OS and asked users to upgrade the operating system as soon as possible.

Google has fixed these vulnerabilities by rolling out an update on the 31st of August. Well, the company hasn’t notified any traces of active exploitation in the wild. The advisory has a list of 14 vulnerabilities, of which 4 are identified as high, and the remaining 10 are medium in severity. The reported vulnerabilities would be abused to carry out arbitrary code execution and denial of service attacks on the vulnerable version of Chrome OS by remote attackers.

List 14 New 0-Day Vulnerabilities in Chrome OS

In the update Google shared, it has fixed these 14 0-day vulnerabilities in Chrome OS, of which 4 is High, and the remaining 10 are Medium in severity. Please see the list as under. Successful exploitation could lead to arbitrary code execution and denial of service attacks on the vulnerable version of ChromeOS by remote attackers.

Chrome OS Versions Affected by These 0-Day Vulnerabilities

It’s been said that all the LTS versions prior to 96.0..4664.219 (Platform Version: 14268.104.0).

How to Fix These 0-Day Vulnerabilities in Chrome OS?

Google responded and released updates on 31st August to fix all the 14 New 0-Day Vulnerabilities in Chrome OS. All the Chrome OS users are suggested to upgrade to v96.0..4664.219 (Platform Version: 14268.104.0). Please refer to the security advisory by Google.

How to Upgrade Chrome OS?

Well, Chrome OS is designed to fetch upgrades by itself. Most of the time, auto-upgrade will work. Your Chrome OS didn’t receive upgrades for any reason, and you will have to kick start the process manually.  Then you can follow any one of the methods shown here.

Method 1: Manual Upgrade From Settings

For some reason, if auto-upgrade didn’t get fired up. Follow the Method 2.

Method 2: Upgrade Using Brunch Framework

Step 1. Open Terminal

Click Crtl + Alt + T and keys together to open Crosh Shell.

Step 2. Open shell

Enter ‘shell‘ command to open the shell.

Step 3. Download brcr-update

Use this curl command to download brcr-update as shone here:
$ curl -L -o – https://git.io/JLh1V | sudo bash

Step 4. Update brcr-update

Run this command. That’s it.
$ brcr-update

Method 3: Manually Update Brunch and Chrome OS Together

$ sudo chromeos-update -r ~/Downloads/<path to recovery filw> -f ~/Downloads/<path of brunch archive file>

4. Restart the Chrome OS.

Method 4: Upgrade Only Chrome Os Skipping Brunch Framework

This is the easiest way to upgrade the Chrome OS. All you need to do enable_updates framework option, then carry out the upgradation from the ‘Settings’ as shown in Method 1. This is not the recommended method.

$ sudo edit-brunch-config

3. Add enable_updates as shone in the picture. Save the changes.

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We hope this post would help you know how to patch the 14 new 0-day vulnerabilities in Chrome OS. Please share this post if you find this interested. Visit our social media page on Facebook, LinkedIn, Twitter, Telegram, Tumblr, Medium & Instagram, and subscribe to receive updates like this.