Android Security Bulletin—August 2021
Published August 2, 2021
The Android Security Bulletin contains details of security vulnerabilities affecting Android devices. Security patch levels of 2021-08-05 or later address all of these issues. To learn how to check a device's security patch level, see
Check and update your Android version.
Android partners are notified of all issues at least a month before publication. Source code patches for these issues will be released to the Android Open Source Project (AOSP) repository in the next 48 hours. We will revise this bulletin with the AOSP links when they are available.
The most severe of these issues is a high security vulnerability in the Media Framework component that could enable a local malicious application to bypass operating system protections that isolate application data from other applications. The
severity assessment is based on the effect that exploiting the vulnerability would possibly have on an affected device, assuming the platform and service mitigations are turned off for development purposes or if successfully bypassed.
Refer to the
Android and Google Play Protect mitigations section for details on the
Android security platform protections and Google Play Protect, which improve the security of the Android platform.
source.android.com
