CVE-2018-20787 Details

CVE-2018-20787

Published: 2019-02-25
Last Modified: 2019-02-26
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity High
Base Score 7.1/10
Exploit Score 8.6/10
Access Vector Network
Access Complexity Medium
Authentication None
Impact Score 6.9/10
Confidentiality Impact None
Availability Impact Complete
Integrity Impact None
Vector String AV:N/AC:M/Au:N/C:N/I:N/A:C
Common Vulnerability Score System v3.1
Severity Medium
Base Score 5.5/10
Exploit Score 1.8/10
Access Vector Local
Access Complexity Low
Privileges Required None
Impact Score 3.6/10
Confidentiality Impact None
Availability Impact High
Integrity Impact None
Scope Unchanged
User Interaction Required
Vector String CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:micode:xiaomi_perseus-p-oss:*:*:*:*:*:*:*:* Yes - -
References

https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/991

CVE ID
CVE-2018-20787
Published
2019-02-25
Modified
2019-02-26
CVSSv2.0
High
CVSSv3.1
Medium
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-190

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