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Vulnerability DatabaseCVE-2021-39784

CVE-2021-39784: 
NixOS vulnerability analysis and mitigation

Overview

In CellBroadcastReceiver, there is a possible path to enable specific cellular features due to a missing permission check. This vulnerability, identified as CVE-2021-39784, affects Android 12L. The vulnerability was discovered and reported by Android (associated with Google Inc. or Open Handset Alliance) (Android Advisory).

Technical details

The vulnerability is characterized by a missing permission check in the CellBroadcastReceiver component. It has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-269 (Improper Privilege Management) (NVD Details).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with no additional execution privileges needed. The successful exploitation could result in unauthorized access to cellular features, potentially compromising the security of the device's cellular functionality (NVD Details).

Mitigation and workarounds

The vulnerability has been addressed in Android 12L. Users are advised to update their devices to the latest available security patch level to mitigate this vulnerability (Android Advisory).

Additional resources

Source: This report was generated using AI

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