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Vulnerability DatabaseCVE-2023-21190

CVE-2023-21190: 
NixOS vulnerability analysis and mitigation

Overview

In btmaclencryptchange of btmacl.cc, there is a possible way for a remote device to turn off encryption without resulting in a terminated connection due to an unusual root cause. This vulnerability (CVE-2023-21190) affects Android version 13. The vulnerability was disclosed in the June 2023 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability has been assigned a CVSS v3.1 Base Score of 5.0 (MEDIUM) with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N. The vulnerability exists in the Bluetooth subsystem, specifically in the btmaclcc component, where encryption changes could be manipulated (NVD).

Impact

A successful exploitation of this vulnerability could lead to local information disclosure. The attack requires user interaction and no additional execution privileges are needed. The confidentiality impact is rated as High, while there are no direct impacts on integrity or availability (NVD).

Mitigation and workarounds

The vulnerability has been addressed in the Android Security Bulletin for June 2023. Users are advised to update their Android devices to the latest available security patch level to protect against this vulnerability (Android Bulletin).

Additional resources

Source: This report was generated using AI

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