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Vulnerability DatabaseCVE-2021-39630

CVE-2021-39630: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-39630 is a vulnerability discovered in Android 12's OverlayManagerService.java component. The vulnerability allows potential control of fabricated overlays from adb shell due to a permissions bypass. This vulnerability was disclosed in January 2022 and affects Android 12 operating system (Android Bulletin).

Technical details

The vulnerability exists in the executeRequest function of OverlayManagerService.java. 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 an incorrect authorization issue (CWE-863) (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with no additional execution privileges needed. The vulnerability provides high impacts on confidentiality, integrity, and availability of the system (NVD).

Mitigation and workarounds

The vulnerability was addressed in the January 2022 Android Security Bulletin. Users should update their Android devices to the latest security patch level to mitigate this vulnerability (Android Bulletin).

Additional resources

Source: This report was generated using AI

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