PT-2021-22695 · Google · Android Kernel

Published 2021-12-15 · Updated 2022-07-12 · CVE-2021-39651

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 allows access to PIN protected settings without PIN confirmation due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations: For Android kernel, consider implementing a permission check to prevent unauthorized access to PIN protected settings until a patch is available. As a temporary workaround, restrict access to sensitive settings to minimize the risk of exploitation.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2021-39651

Affected Products

Android Kernel

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2021-39651 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory