CVE-2022-20098: 
NixOS vulnerability analysis and mitigation

CVE-2022-20098 is a security vulnerability discovered in the aee daemon component affecting MediaTek chipsets. The vulnerability was disclosed in May 2022 and is characterized as a missing permission check issue that could lead to information disclosure. The vulnerability affects multiple MediaTek chipset series including MT6580, MT6739, MT6761, MT6762, and many others running Android versions 11.0 and 12.0 (MediaTek Bulletin).

The vulnerability is classified as a medium severity information disclosure issue caused by a missing authorization check in the aee daemon component. It has been assigned CWE-862 (Missing Authorization) as its weakness enumeration. The vulnerability requires System execution privileges for exploitation, and no user interaction is needed for exploitation (CVE Details, MediaTek Bulletin).

If exploited, this vulnerability could lead to local information disclosure with System execution privileges needed. The impact is limited to local attacks, meaning the attacker would need access to the affected device (MediaTek Bulletin).

MediaTek has addressed this vulnerability and notified device OEMs of the security patches at least two months before the public disclosure in May 2022. Users should ensure their devices are updated with the latest security patches provided by their device manufacturers (MediaTek Bulletin).