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Vulnerability DatabaseCVE-2023-20679

CVE-2023-20679: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20679 is a medium severity vulnerability discovered in MediaTek's WLAN component, disclosed in April 2023. The vulnerability affects various MediaTek chipsets including MT5221, MT6781, MT6789, MT6833, and others running Android 11.0, 12.0, 13.0, Yocto 3.1, 3.3, 4.0, and Linux-4.19 operating systems (MediaTek Bulletin).

Technical details

The vulnerability is classified as an out-of-bounds read vulnerability (CWE-125) due to a missing bounds check in the WLAN component. The CVSS v3.1 base score is 4.4 MEDIUM with the vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N (NVD).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with System execution privileges needed. The impact is primarily focused on information disclosure, requiring system execution privileges for exploitation (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has released security patches to address this vulnerability. Device OEMs were notified of the issue and corresponding security patches at least two months before the public disclosure. Users should ensure their devices are updated with the latest security patches (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

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