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Vulnerability DatabaseCVE-2021-0694

CVE-2021-0694: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-0694 is a vulnerability discovered in Android's ActiveServices.java component, specifically in the setServiceForegroundInnerLocked function. The vulnerability affects Android 11 and was disclosed in the April 2022 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability exists due to insufficient background restrictions in the setServiceForegroundInnerLocked function of ActiveServices.java. This security flaw 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, indicating local access, low attack complexity, low privileges required, and no user interaction needed (NVD).

Impact

The vulnerability allows a background application to regain foreground permissions, which could lead to local escalation of privilege. The impact is significant as it requires no additional execution privileges and can result in high levels of confidentiality, integrity, and availability compromise (NVD).

Mitigation and workarounds

The vulnerability was addressed in the Android Security Bulletin for April 2022. Users should ensure their Android devices are updated with the latest security patches to mitigate this vulnerability (Android Bulletin).

Additional resources

Source: This report was generated using AI

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