CVE-2022-21781
NixOS vulnerability analysis and mitigation

Overview

CVE-2022-21781 is a security vulnerability affecting WLAN drivers in various MediaTek chipsets. The vulnerability was discovered and disclosed in July 2022, affecting Android versions 11.0 and 12.0 running on multiple MediaTek platforms (MediaTek Bulletin).

Technical details

The vulnerability is classified as an improper input validation issue in the WLAN driver, where there is a possible out-of-bounds write condition due to missing bounds checks. The vulnerability has been assigned a Medium severity rating (MediaTek Bulletin).

Impact

If exploited, this vulnerability could lead to local escalation of privilege with System execution privileges needed. The vulnerability requires no user interaction for exploitation (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has released security patches for the affected chipsets. Device manufacturers have been notified of the issues and corresponding security patches at least two months before the public disclosure (MediaTek Bulletin).

Additional resources


SourceThis report was generated using AI

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