PT-2022-9121 · Google · Android

Published 2022-04-01 · Updated 2022-04-20 · CVE-2021-0694

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 versions Android-11

Description The issue allows a background application to regain foreground permissions due to insufficient background restrictions. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-11, apply the necessary patches or updates to restrict background applications from regaining foreground permissions. As a temporary workaround, consider restricting the use of background services to minimize the risk of exploitation.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

ASB-A-183147114

CVE-2021-0694

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/ASB-A-183147114 · Vendor Advisory
• https://source.android.com/security/bulletin/2022-04-01 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0694 · Security Note
• https://osv.dev/vulnerability/CVE-2021-0694 · Vendor Advisory
• https://android.googlesource.com/platform/frameworks/base/+/5d30b701587920280c12210af22f3457b802da6e · Note