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Vulnerability DatabaseCVE-2021-0422

CVE-2021-0422: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-0422 is a medium severity vulnerability affecting the memory management driver in MediaTek smartphone chipsets. The vulnerability was discovered and reported in 2020, with patches released in September 2021. The issue affects various MediaTek chipsets running Android versions 10.0 and 11.0 (MediaTek Bulletin).

Technical details

The vulnerability stems from a missing bounds check in the memory management driver. It has been classified under CWE-400 (Denial of Service) and received a medium severity rating. The vulnerability affects numerous MediaTek chipset models, including MT6580, MT6735, MT6739, and many others running Android versions 10.0 and 11.0 (CVE Details).

Impact

When exploited, this vulnerability could lead to a local denial of service condition on affected devices. The system crash occurs due to the missing bounds check in the memory management driver. No additional execution privileges are required for exploitation (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has addressed this vulnerability through security patches released in September 2021. Device OEMs were notified of the issues and corresponding security patches at least two months before publication (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

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