In rw_i93_sm_read_ndef of rw_i93.cc, there is a possible out-of-bounds write due to an integer overflow. This could lead to local escalation of privilege in the NFC process with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9. Android ID: A-122035770.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
Link | Tags |
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https://source.android.com/security/bulletin/2019-04-01 | patch vendor advisory |