CVE-2018-19939: Null Pointer Dereference

Published Dec 7, 2018
·
Updated

The Goodix GT9xx touchscreen driver for custom Linux kernels on Xiaomi daisy-o-oss and daisy-p-oss as used in Mi A2 Lite and RedMi6 pro devices through 2018-08-27 has a NULL pointer dereference in kfree after a kmalloc failure in gtpreadColor in drivers/input/touchscreen/gt917d/gt9xx.c.

Affected Software

4 affected components
Mi Mi A2 Lite Firmware<=2018-08-27
Mi Mi A2 Lite
Mi Redmi 6 Firmware<=2018-08-27
Mi Redmi 6

Event History

Dec 7, 2018
CVE Published
via MITRE·09:00 AM
Data Sourced
via MITRE·09:00 AM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2018-19939?

CVE-2018-19939 is classified as a low-severity vulnerability due to the nature of the NULL pointer dereference.

2

How do I fix CVE-2018-19939?

To fix CVE-2018-19939, ensure that the affected devices are updated to a firmware version released after August 27, 2018.

3

What devices are affected by CVE-2018-19939?

CVE-2018-19939 affects the Mi A2 Lite and Redmi 6 devices running specific firmware versions up to August 27, 2018.

4

What exploit does CVE-2018-19939 introduce?

CVE-2018-19939 introduces a vulnerability that could potentially lead to a denial of service due to the NULL pointer dereference.

5

Is CVE-2018-19939 remotely exploitable?

CVE-2018-19939 is not considered remotely exploitable as it requires local access to the affected device.

Contact

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