CVE-2018-20787

The ft5x46 touchscreen driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26 has an integer overflow and OOPS because of missing checks of the size argument in tpdbg_write in drivers/input/touchscreen/ft5x46/ft5x46_ts.c. This is exploitable for a device crash via a syscall by a crafted application on a rooted device.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
NONE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
VendorProductVersion
micodexiaomi_perseus-p-oss
𝑥
≤ 2018-11-26
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/991
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/991