CVE-2023-21091
NixOS vulnerability analysis and mitigation

Overview

In canDisplayLocalUi of AppLocalePickerActivity.java in Android 13, there is a vulnerability due to a missing permission check. This vulnerability (CVE-2023-21091) was disclosed in the April 2023 Android Security Bulletin. The issue affects Android version 13 without the April 2023 security patch (Android Bulletin).

Technical details

The vulnerability stems from a missing permission check in the canDisplayLocalUi function within AppLocalePickerActivity.java. This security flaw has been assigned a CVSS v3.1 Base Score of 5.5 (Medium), with the following vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. The vulnerability is classified as CWE-862 (Missing Authorization) (NVD).

Impact

If exploited, this vulnerability could lead to local denial of service across user boundaries. The attack can be executed without additional execution privileges and does not require user interaction for exploitation (NVD).

Mitigation and workarounds

The vulnerability was addressed in the Android Security Bulletin for April 2023. Users should apply the April 2023 security patch level to mitigate this vulnerability (Android Bulletin).

Additional resources


SourceThis report was generated using AI

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