CVE-2021-39738
NixOS vulnerability analysis and mitigation

Overview

In CarSettings, there is a possible way to pair BT device bypassing user's consent due to a missing permission check. This vulnerability (CVE-2021-39738) affects Android versions 10, 11, 12, and 12L. The issue was disclosed in May 2022 (NVD).

Technical details

The vulnerability stems from a missing permission check in CarSettings functionality. 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 as CWE-862: Missing Authorization (NVD).

Impact

This vulnerability could lead to local escalation of privilege with no additional execution privileges needed. An attacker could bypass user consent mechanisms for Bluetooth device pairing, potentially compromising the security of Bluetooth connections (NVD).

Mitigation and workarounds

The vulnerability was addressed in the Android Security Bulletin for May 2022. Users should update their Android devices to the latest available security patch level (Android Advisory).

Additional resources


SourceThis report was generated using AI

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