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Vulnerability DatabaseCVE-2023-20838

CVE-2023-20838: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20838 is a medium severity vulnerability discovered in MediaTek's imgsys component. The vulnerability was disclosed in September 2023 and affects various MediaTek chipsets including MT2713, MT6895, MT6897, MT6983, MT8188, MT8195, MT8395, and MT8673. The affected software versions include Android 11.0, 12.0, Linux 6.1, IOT-v23.0, and Yocto 4.0 (MediaTek Bulletin).

Technical details

The vulnerability is classified as an out-of-bounds read vulnerability (CWE-125) that occurs due to a race condition in the imgsys component. The CVSS v3.1 base score is 4.0 (MEDIUM), with the vector string CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N (NVD).

Impact

This vulnerability could lead to local information disclosure with System execution privileges needed. The impact is limited to information disclosure, with no impact on system integrity or availability. User interaction is required for exploitation (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has addressed this vulnerability through security patches. Device OEMs were notified of the issues and corresponding security patches at least two months before the public disclosure (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

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