PT-2022-14598 · Google · Android Kernel

Published 2022-08-11 · Updated 2022-08-13 · CVE-2022-20373

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:L/AC:H/PR:H/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 a possible use after free due to a race condition in the st21nfc loc set polaritymode function of fc/st21nfc.c. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider applying a patch to fix the use after free issue in the st21nfc loc set polaritymode function as a permanent solution. As a temporary workaround, consider restricting access to the fc/st21nfc.c module to minimize the risk of exploitation.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2022-20373

Affected Products

Android Kernel

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2022-20373 · Security Note
• https://source.android.com/security/bulletin/pixel/2022-08-01 · Vendor Advisory
• https://t.me/cvenotify/34580 · Telegram Post
• https://t.me/cvenotify/34632 · Telegram Post
• https://t.me/cibsecurity/47969 · Telegram Post