system
Provide references for <CVE-2021-21705>.
user
Where can I find more information about <CVE-2021-21705>?
assistant
References are available at: https://bugs.php.net/bug.php?id=81122, https://www.oracle.com/security-alerts/cpujan2022.html, https://security.netapp.com/advisory/ntap-20211029-0006/, https://security.gentoo.org/glsa/202209-20.