PT-2021-13395 · Google · Android

Published 2021-12-15 · Updated 2021-12-17 · CVE-2021-0990

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

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

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

Description In the getDeviceId function of PhoneSubInfoController.java, 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-12, consider restricting access to the getDeviceId function in PhoneSubInfoController.java to minimize the risk of exploitation. As a temporary workaround, avoid using the getDeviceId function until a patch is available. 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-2021-0990

Affected Products

Android

References · 4

• https://osv.dev/vulnerability/CVE-2021-0990 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-0990 · Security Note
• https://source.android.com/security/bulletin/pixel/2021-12-01 · Vendor Advisory
• https://t.me/cvenotify/24601 · Telegram Post