NULL pointer dereference in Mi A2 Lite

CVE-2018-19939

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 gtp_read_Color in drivers/input/touchscreen/gt917d/gt9xx.c.

EPSS: 0.013 (67.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-19939?
CVE-2018-19939 is a high-severity vulnerability in Mi A2 Lite, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2018-12-07.
How severe is CVE-2018-19939?
High severity. CVSS v3 base score is 7.5 out of 10.