PT-2022-11057 · Google · Android

Published 2022-03-30 · Updated 2022-04-05 · CVE-2021-39779

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 a missing permission check in the getCallStateUsingPackage function of the Telecom Service. This could lead to local information disclosure of the call state with no additional execution privileges needed. User interaction is not required for exploitation.

Recommendations For Android version Android-12L, update to a version that includes the fix for the missing permission check in the getCallStateUsingPackage function of the Telecom Service. As a temporary workaround, consider restricting access to the Telecom Service to minimize the risk of exploitation.

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2021-39779

Affected Products

Android

References · 4

• https://osv.dev/vulnerability/CVE-2021-39779 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39779 · Security Note
• https://source.android.com/security/bulletin/android-12l · Vendor Advisory
• https://t.me/cibsecurity/39831 · Telegram Post