In adjustStreamVolume of AudioService.java, there is a possible way for unprivileged app to change audio stream volume due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-189857506

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-1003
• https://source.android.com/security/bulletin/pixel/2021-12-01