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Vulnerability DatabaseCVE-2022-21757

CVE-2022-21757: 
NixOS vulnerability analysis and mitigation

Overview

In WIFI Firmware, there is a possible system crash due to a missing count check. This vulnerability (CVE-2022-21757) was discovered and disclosed in June 2022, affecting MediaTek's WIFI Firmware in various chipsets including MT6833, MT6853, MT6877, MT6885, MT6889, MT6983, MT6985, and several other models running Android 11.0 and 12.0 (MediaTek Advisory).

Technical details

The vulnerability is classified as CWE-400 (Uncontrolled Resource Consumption) with a CVSS v3.1 base score of 7.5 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). The issue stems from a missing count check in the WIFI Firmware implementation, which could lead to system resource exhaustion (NVD).

Impact

This vulnerability could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation, making it particularly concerning for affected devices (MediaTek Advisory).

Mitigation and workarounds

The affected devices running Android 11.0 and 12.0 should be updated with the security patches provided by MediaTek. The vulnerability has been addressed in subsequent firmware updates for the affected chipsets (MediaTek Advisory).

Additional resources

Source: This report was generated using AI

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