What is CVE-2021-1034?

CVE-2021-1034 is a low-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 3.3/10. Published 2021-12-15.

How severe is CVE-2021-1034?

Low severity. CVSS v3 base score is 3.3 out of 10.

Auth bypass in Google Android

CVE-2021-1034

In getLine1NumberForDisplay of PhoneInterfaceManager.java, there is apossible way to determine whether an app is installed, without querypermissions due to a missing permission check. This could lead to localinformation disclosure with no additional execution privileges needed. Userinteraction is not needed for exploitation.Product: AndroidVersions: Android-12Android ID: A-193441322

Vulnerability class: Broken Access Control

EPSS: 0.001 (1.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Google Android — versions 12.0
N/a Android — versions Android-12

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-1034?: CVE-2021-1034 is a low-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 3.3/10. Published 2021-12-15.
How severe is CVE-2021-1034?: Low severity. CVSS v3 base score is 3.3 out of 10.