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Vulnerability DatabaseCVE-2021-39689

CVE-2021-39689: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-39689 affects Android version 12 and involves multiple functions in odsign_main.cpp. The vulnerability stems from a logic error in the code that could enable system attack persistence. This vulnerability was disclosed in the March 2022 Android Security Bulletin (Android Bulletin).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 6.7 (MEDIUM) with the following vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-345 (Insufficient Verification of Data Authenticity). The issue requires system execution privileges for exploitation, but no user interaction is needed (NVD).

Impact

If successfully exploited, this vulnerability could lead to local escalation of privilege with system execution privileges. The vulnerability affects confidentiality, integrity, and availability of the system, all with high impact ratings (NVD).

Mitigation and workarounds

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

Additional resources

Source: This report was generated using AI

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