CVE-2023-21116 Information

Description

In verifyReplacingVersionCode of InstallPackageHelper.java there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256202273

Reference

https://source.android.com/security/bulletin/2023-05-01