A firmware-nonfree security update has been released for Debian GNU/Linux 8 and 9 Extended LTS to address some potential security vulnerabilities.

ELA-981-1 firmware-nonfree security update

Package : firmware-nonfree
Version : 20190114+really20220913-0+deb8u2 (jessie), 20190114+really20220913-0+deb9u2 (stretch)

Related CVEs :
CVE-2022-27635
CVE-2022-36351
CVE-2022-38076
CVE-2022-40964
CVE-2022-46329

Intel® released the INTEL-SA-00766 advisory about potential security
vulnerabilities in some Intel® PROSet/Wireless WiFi and Killer™ WiFi products
may allow escalation of privilege or denial of service. The full advisory is
available at [1]
[1] https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00766.html
This updated firmware-nonfree package includes the following firmware files:

Intel Bluetooth AX2xx series:

ibt-0041-0041.sfi
ibt-19-0-0.sfi
ibt-19-0-1.sfi
ibt-19-0-4.sfi
ibt-19-16-4.sfi
ibt-19-240-1.sfi
ibt-19-240-4.sfi
ibt-19-32-0.sfi
ibt-19-32-1.sfi
ibt-19-32-4.sfi
ibt-20-0-3.sfi
ibt-20-1-3.sfi
ibt-20-1-4.sfi

Intel Wireless 22000 series

iwlwifi-Qu-b0-hr-b0-77.ucode
iwlwifi-Qu-b0-jf-b0-77.ucode
iwlwifi-Qu-c0-hr-b0-77.ucode
iwlwifi-Qu-c0-jf-b0-77.ucode
iwlwifi-QuZ-a0-hr-b0-77.ucode
iwlwifi-cc-a0-77.ucode

The updated firmware files might need updated kernel to work. It is encouraged
to verify whether the kernel loaded the updated firmware file and take
additional measures if needed.

CVE-2022-27635
Improper access control for some Intel(R) PROSet/Wireless WiFi and Killer(TM)
WiFi software may allow a privileged user to potentially enable escalation of
privilege via local access.

CVE-2022-36351
Improper input validation in some Intel(R) PROSet/Wireless WiFi and Killer(TM)
WiFi software may allow an unauthenticated user to potentially enable denial of
service via adjacent access.

CVE-2022-38076
Improper input validation in some Intel(R) PROSet/Wireless WiFi and Killer(TM)
WiFi software may allow an authenticated user to potentially enable escalation
of privilege via local access.

CVE-2022-40964
Improper access control for some Intel(R) PROSet/Wireless WiFi and Killer(TM)
WiFi software may allow a privileged user to potentially enable escalation of
privilege via local access.

CVE-2022-46329
Protection mechanism failure for some Intel(R) PROSet/Wireless WiFi software
may allow a privileged user to potentially enable escalation of privilege via
local access.

ELA-981-1 firmware-nonfree security update