PT-2022-11074 · Google · Android

Published 2022-04-01 · Updated 2022-07-12 · CVE-2021-39799

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-12 through Android-12L

Description The issue is related to a possible permission bypass in the AttributionSource of AttributionSource.java due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android versions Android-12 through Android-12L, consider restricting access to the AttributionSource until a patch is available. As a temporary workaround, review and strengthen input validation in the AttributionSource of AttributionSource.java to prevent potential permission bypass.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

ASB-A-200288596

CVE-2021-39799

Affected Products

Android

References · 5

• https://osv.dev/vulnerability/CVE-2021-39799 · Vendor Advisory
• https://source.android.com/security/bulletin/2022-04-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-200288596 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39799 · Security Note
• https://android.googlesource.com/platform/frameworks/base/+/b716ef0497811c40f4908d657d3c9f99fa23595d · Note