PT-2022-11068 · Google · Android

Published 2022-03-30 · Updated 2022-04-05 · CVE-2021-39791

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android versions Android-12L

Description In WallpaperManagerService, there is a possible way to determine whether an app is installed, without query permissions, due to side channel information disclosure. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-12L, update to a version that includes the fix for the issue in WallpaperManagerService to prevent local information disclosure.

Fix

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2021-39791

Affected Products

Android

References · 4

• https://osv.dev/vulnerability/CVE-2021-39791 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39791 · Security Note
• https://source.android.com/security/bulletin/android-12l · Vendor Advisory
• https://t.me/cibsecurity/39846 · Telegram Post