CVE-2021-23223: 
Linux Debian vulnerability analysis and mitigation

CVE-2021-23223 is a security vulnerability affecting Intel(R) PROSet/Wireless WiFi and Killer(TM) WiFi products. The vulnerability, disclosed in Intel Security Advisory (INTEL-SA-00621), stems from improper initialization in the affected products. The vulnerability affects multiple systems including Intel® Wi-Fi 6E AX411, AX211, AX210, and Killer™ Wi-Fi 6E products running on Windows 10 & 11, Linux, Chrome OS, and UEFI platforms (Intel Advisory).

The vulnerability is characterized by an improper initialization issue in the affected WiFi products. This security flaw requires local access and privileged user permissions to be exploited. The vulnerability was assigned on November 30, 2021, as recorded in the CVE database (CVE Mitre).

If successfully exploited, this vulnerability could lead to escalation of privilege on affected systems. The impact is limited by the requirement of local access and privileged user permissions (NVD).

Fixes for this vulnerability have been released through firmware updates. For Debian systems, the fix was included in firmware-nonfree version 20190114+really20220913-0+deb10u1. The vulnerability was addressed upstream on August 15, 2022 (Debian LTS).