system
Provide references for <CVE-2021-21281>.
user
Where can I find more information about <CVE-2021-21281>?
assistant
References are available at: https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-mc42-fqfr-h9fp, https://github.com/contiki-ng/contiki-ng/pull/1366.