PT-2022-14788 · Google · Android Kernel

Published 2022-12-16 · Updated 2022-12-21 · CVE-2022-20582

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 a possible out of bounds write in the ppmp unprotect mfcfw buf function of drm fw.c due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider applying a patch or fix that addresses the improper input validation in the ppmp unprotect mfcfw buf function of drm fw.c to prevent out of bounds write. As a temporary workaround, consider restricting access to the drm fw.c module to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2022-20582

Affected Products

Android Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2022-20582 · Security Note
• https://source.android.com/security/bulletin/pixel/2022-12-01 · Vendor Advisory
• https://t.me/cvenotify/40300 · Telegram Post
• https://t.me/cibsecurity/54714 · Telegram Post