In GateKeeper::MintAuthToken of gatekeeper.cpp in Android 7.1.1, 7.1.2, 8.0, 8.1 and 9, there is possible memory corruption due to a double free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
| Software | From | Fixed in |
|---|---|---|
| google / android | 7.1.2 | 7.1.2.x |
| google / android | 8.0 | 8.0.x |
| google / android | 7.1.1 | 7.1.1.x |
| google / android | 8.1 | 8.1.x |
| google / android | 9.0 | 9.0.x |