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Vulnerability DatabaseCVE-2023-20839

CVE-2023-20839: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20839 is a vulnerability discovered in MediaTek's imgsys component. The vulnerability was disclosed in September 2023 and affects multiple MediaTek chipsets including MT2713, MT6895, MT6897, MT6983, MT8188, MT8195, MT8395, and MT8673. The issue is classified as a medium severity vulnerability with a CVSS v3.1 base score of 4.2 (NVD).

Technical details

The vulnerability is classified as an out-of-bounds read (CWE-125) due to missing valid range checking in the imgsys component. The vulnerability requires system execution privileges and user interaction for exploitation (MediaTek Bulletin).

Impact

If exploited, this vulnerability could lead to local information disclosure with System execution privileges. The attack requires user interaction to be successful (MediaTek Bulletin).

Mitigation and workarounds

The vulnerability affects multiple software versions including Android 11.0, 12.0, Linux 6.1, IOT-v23.0, and Yocto 4.0. MediaTek has notified device OEMs of the issue and corresponding security patches have been made available (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

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