PT-2022-26496 · Google · Android Kernel

Published 2022-12-16 · Updated 2022-12-21 · CVE-2022-42534

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to improper input validation in the trusty ffa mem reclaim function of shared-mem-smcall.c, which could lead to a local escalation of privilege. No additional execution privileges are needed, and user interaction is not required for exploitation.

Recommendations For Android kernel, consider applying a patch that fixes the improper input validation in the trusty ffa mem reclaim function as a permanent solution. As a temporary workaround, restrict access to the shared-mem-smcall.c module to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2022-42534

Affected Products

Android Kernel

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2022-42534 · Security Note
• https://source.android.com/security/bulletin/pixel/2022-12-01 · Vendor Advisory
• https://t.me/cvenotify/40390 · Telegram Post