CVE-2023-20929
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20929 is a vulnerability discovered in Android 13's HalfSheetActivity.java component, specifically in the sendHalfSheetCancelBroadcast function. The vulnerability was disclosed in the March 2023 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability exists in the sendHalfSheetCancelBroadcast function of HalfSheetActivity.java, where an unrestricted broadcast intent could potentially expose nearby Bluetooth MAC addresses. The vulnerability has been assigned a CVSS v3.1 Base Score of 5.5 (MEDIUM) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (NVD).

Impact

A successful exploitation of this vulnerability could lead to local information disclosure, specifically the ability to learn nearby Bluetooth MAC addresses. The impact is limited to confidentiality with no impact on integrity or availability of the system (NVD).

Mitigation and workarounds

The vulnerability has been addressed in the Android Security Bulletin for March 2023. Users should update their Android 13 devices with the latest security patches to mitigate this vulnerability (Android Bulletin).

Additional resources


SourceThis report was generated using AI

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