Provide references for CVE-2021-3428.
Where can I find more information about CVE-2021-3428?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=1972621, https://ubuntu.com/security/CVE-2021-3428, https://www.openwall.com/lists/oss-security/2021/03/17/1.