system
Provide references for <CVE-2021-31661>.
user
Where can I find more information about <CVE-2021-31661>?
assistant
References are available at: https://github.com/RIOT-OS/RIOT/pull/15945, https://github.com/RIOT-OS/RIOT/commit/609c9ada34da5546cffb632a98b7ba157c112658.