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Vulnerability DatabaseCVE-2021-39749

CVE-2021-39749: 
NixOS vulnerability analysis and mitigation

Overview

In WindowManager for Android 12L, there exists a vulnerability (CVE-2021-39749) where non-exported and protected activities can be started due to a missing permission check. The vulnerability was disclosed and documented in March 2022, affecting Android's WindowManager component (NVD, Android Bulletin).

Technical details

The vulnerability 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 issue stems from a missing authorization check (CWE-862) in the WindowManager component. The vulnerability requires local access with low privileges, and no user interaction is needed for exploitation (NVD).

Impact

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

Mitigation and workarounds

The vulnerability has been addressed in the Android 12L security update. Users and system administrators should ensure their Android devices are updated to the latest security patch level that includes fixes for Android 12L (Android Bulletin).

Additional resources

Source: This report was generated using AI

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