Information about Android security updates: Everything you need to know

Every month, we work on fixing the most recent problems and vulnerabilities in Android.

Google has published a thorough description of the most recent Android Security Bulletin as well as the patches for Pixel devices.

Exploits and other security problems that impact the Android operating system as a whole are discussed here. Issues with the operating system, kernel patches, and driver updates may not affect any specific device, but they must be addressed in the Android base by the developers who are responsible for maintaining the operating system’s source code. That would be Google, and they have provided a list of the improvements they have made for this month.

New factory images for Pixel devices that are still supported are available, and customers will be able to download over-the-air upgrades when they become available. Manually downloading and flashing the factory image or OTA update file is an option for those who don’t want to wait, and we’ve included some helpful steps to get you started.

These improvements have been available to those who are developing the finest Android smartphones for at least 30 days, but Google has no authority to compel anyone to give them to you. So if you’re using a phone from Samsung, LG, or any other manufacturer other than Google, you’ll need to wait for them to provide you an update and shouldn’t try to flash any of the files listed above until you receive one from them. It’s possible that it’s already happened, because OEMs have the ability to distribute the fix before the date Google must adhere to in order to prevent the vulnerabilities from becoming public.

Of course, Google has safety measures in place to ensure that your phone does not experience any issues as a result of any security vulnerabilities. When you add an app to your phone, you can check to see if Apps and SafetyNet are active, and seamless updates to Google Play Services will keep them up to date regardless of whether or not a manufacturer or carrier delays the process. You may learn more about Android Enterprise Security by visiting this page.

Thanks to Project Mainline, devices running Android 10 and later may be able to get security upgrades in the same manner as Google Play system updates.

The most important aspects of the September 2021 security bulletin
As is customary, concerns of high severity have been handled in the Android Framework and Media Framework.
Project Mainline was also responsible for the updating of media codecs.
Open-source and closed-source components from Qualcomm, MediaTek, and Unisoc have been upgraded to address vulnerabilities discovered in their hardware.
In addition, a vulnerability in the Android kernel was patched up.

Updates that are unique to a pixel
Google published several Pixel-specific updates this month, as it does every month, that will effect phones that are currently supported by the company, including the Pixel 3, Pixel 3a, Pixel 4, Pixel 4a, Pixel 5, and Pixel 5a. There are no extra feature changes included with the security patch for September 2021, as there were in previous years.

The Android Security page has the full details for the security bulletin that will be released in September 2021. The Pixel smartphones have received a number of updates, which are described here.

Details on all of the advisories can be found on the Android Security page, and Google also provides a breakdown of the modifications that are particular to the Pixel smartphone.



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