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.
CVE-2023-21269 - High Severity Vulnerability
Android framework classes and services
Library home page: https://android.googlesource.com/platform/frameworks/base
Found in HEAD commit: f63c00c11df9fe4c62ee2ed7d5f72e3a7ebec027
Found in base branch: master
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.
Publish Date: 2023-08-14
URL: CVE-2023-21269
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://android.googlesource.com/platform/frameworks/base/+/70ec64dc5a2a816d6aa324190a726a85fd749b30
Release Date: 2023-08-14
Fix Resolution: android-13.0.0_r67
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