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Vulnerability DatabaseCVE-2021-0666

CVE-2021-0666: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-0666 is a security vulnerability discovered in the apusys component affecting MediaTek chipsets. The vulnerability was disclosed in November 2021 and affects Android 11.0 systems. The issue specifically impacts various MediaTek chipset models including MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797, and several others (MediaTek Bulletin).

Technical details

The vulnerability is classified as an out-of-bounds read vulnerability (CWE-125) that occurs due to an incorrect bounds check in the apusys component. The CVSS v3.1 base score for this vulnerability is 4.4 MEDIUM (Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N), indicating a moderate severity level (NVD).

Impact

The vulnerability could lead to local information disclosure with System execution privileges needed. The impact is limited to information disclosure without affecting system integrity or availability (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has addressed this vulnerability and provided patches to device OEMs. The fix was included in the November 2021 security updates. Device manufacturers were notified of the issue 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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