PT-2022-11044 · Google · Android

Published 2022-03-30 · Updated 2022-04-05 · CVE-2021-39766

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 The issue is related to side channel information disclosure in Settings, allowing an attacker to determine whether an app is installed without query permissions. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android version Android-12L, consider restricting access to sensitive information in Settings to minimize the risk of exploitation. As a temporary workaround, review and adjust app installation query permissions to reduce potential information disclosure. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2021-39766

Affected Products

Android

References · 4

• https://source.android.com/security/bulletin/android-12l · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39766 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39766 · Vendor Advisory
• https://t.me/cvenotify/28475 · Telegram Post