VulnerabilityModified

CVE-2021-39736

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.

MEDIUM 6.7EPSS 0.11%

Does this matter?

Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.

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

CVSS 3.1: 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.11% probability · 2th percentile
CISA KEV: Not listed
Weakness: CWE-190, CWE-787
Affected: google/android
Source: security@android.com

References

https://source.android.com/security/bulletin/pixel/2022-03-01Vendor Advisory
https://source.android.com/security/bulletin/pixel/2022-03-01Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.