In setMediaButtonReceiver of MediaSessionRecord.java, there is a possible way to send a pending intent on behalf of system_server due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.
The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
Link | Tags |
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https://android.googlesource.com/platform/frameworks/base/+/55d3d57cbffc838c52d610af14a056dea87b422e | patch mailing list |
https://source.android.com/security/bulletin/2023-11-01 | patch vendor advisory |