CVE-2021-39736

MEDIUM

Android - Integer Overflow to Out-of-Bounds Write in lwis_ioctl.c and lwis_periodic_io.c

Title source: llm
STIX 2.1

Description

In prepare_io_entry and prepare_response of lwis_ioctl.c and lwis_periodic_io.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-205995773References: N/A

References (1)

Core 1
Core References

Scores

CVSS v3 6.7
EPSS 0.0011
EPSS Percentile 1.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190 CWE-787
Status published
Products (1)
google/android
Published Mar 16, 2022
Tracked Since Feb 18, 2026