An integer underflow may occur due to lack of check when received data length from font_mgr_qsee_request_service is bigger than the minimal value of the segment header, which may result in a buffer overflow, in Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in MDM9206, MDM9607, MDM9650, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 625, SD 650/52, SD 820, SD 820A, SD 835, SD 845, SD 850.
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
Link | Tags |
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https://www.qualcomm.com/company/product-security/bulletins | vendor advisory |