PT-2022-10998 · Google · Android Kernel

Published 2022-03-16 · Updated 2022-03-22 · CVE-2021-39719

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a possible out of bounds write due to an integer overflow in the lwis top register io function of lwis device top.c. This could lead to local escalation of privilege, requiring System execution privileges. No user interaction is needed for exploitation.

Recommendations For Android kernel, consider applying a patch to fix the integer overflow issue in the lwis top register io function as a permanent solution. As a temporary workaround, restrict access to the lwis device top.c module to minimize the risk of exploitation.

Fix

Integer Overflow

Memory Corruption

Weakness Enumeration

CWE-190

CWE-787

Related Identifiers

CVE-2021-39719

Affected Products

Android Kernel

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2021-39719 · Security Note
• https://source.android.com/security/bulletin/pixel/2022-03-01 · Vendor Advisory