system
Describe <CVE-2018-9391>.
user
What is <CVE-2018-9391>?
assistant
In update_gps_sv and output_vzw_debug of
    vendor/mediatek/proprietary/hardware/connectivity/gps/gps_hal/src/gpshal_wor
    ker.c, there is a possible out of bounds write due to a missing bounds
    check. This could lead to local escalation of privilege with System
    execution privileges needed. User interaction is not needed for
    exploitation..