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Vulnerability DatabaseCVE-2022-21755

CVE-2022-21755: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-21755 is a vulnerability discovered in WLAN driver implementations. The vulnerability was disclosed on June 6, 2022, affecting various MediaTek chipsets running Android 11.0 and 12.0. It is characterized as an improper input validation vulnerability that could lead to information disclosure (MediaTek Bulletin).

Technical details

The vulnerability is classified as a medium severity issue with CWE-20 (Improper Input Validation). The vulnerability stems from a possible out of bounds read due to an incorrect bounds check in the WLAN driver. The exploitation requires System execution privileges, and no user interaction is needed for exploitation (MediaTek Bulletin).

Impact

If exploited, this vulnerability could lead to local information disclosure with System execution privileges needed. The vulnerability affects a wide range of MediaTek chipsets, including MT6731, MT6732, MT6735, and many others in the MT67xx, MT68xx, and MT8xxx series (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has released security patches for the affected chipsets. Device OEMs were notified of the issues 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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