CVE-2023-21269 Information

Description

In startActivityInner of ActivityStarter.java there is a possible way to launch an activity into PiP mode from the background due to BAL bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Reference

https://android.googlesource.com/platform/frameworks/base/+/70ec64dc5a2a816d6aa324190a726a85fd749b30 https://source.android.com/security/bulletin/2023-08-01