In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile MDM9625, MDM9635M, MDM9650, MDM9655, SD 400, SD 410/12, SD 615/16/SD 415, SD 617, SD 650/52, SD 808, SD 810, and SDX20, in a QTEE syscall handler, HLOS can cause a buffer overflow to occur.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Small Cell SoC FSM9055, MDM9635M, SD 400, and SD 800, improper input validation in tzbsp_ocmem can cause privilege escalation.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MDM9640, MDM9645, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, SD 617, SD 650/52, SD 808, and SD 810, when enabling XPUs for SMEM partitions, if configuration values are out of range, memory access outside the SMEM may occur and set incorrect XPU configurations.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile IPQ4019, MDM9625, MDM9635M, MDM9640, MDM9650, MDM9655, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, SD 800, SD 808, SD 810, SD 820, and SD 820A, A non-secure region check is done while registering QSEE buffer address which is passed by HLOS but not while logging in the QSEE buffer, so corruption of dynamically protected secure region can occur if the non-secure buffer is changed between the time it's checked and when it's used.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, SD 400, SD 425, SD 430, SD 450, SD 600, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, in the Diag User-PD command registration function, a length variable used during buffer allocation is not checked, so if it is very large, an integer overflow followed by a buffer overflow occurs.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile MDM9625, MDM9635M, SD 400, and SD 800, while computing the length of memory allocated for a Diag event, if the buffer length is very small or greater than the maximum, an integer overflow may occur, which later results in a buffer overflow.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile MDM9625, MDM9635M, SD 400, and SD 800, userspace-provided pointer arguments are not validated.
In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 615/16/SD 415, SD 617, SD 800, SD 808, and SD 810, when making a high speed Dual Carrier Downlink Data call in a multicell environment, a buffer overflow may occur.