Provide references for CVE-2021-3716.
Where can I find more information about CVE-2021-3716?
References are available at: https://www.openwall.com/lists/oss-security/2021/08/18/2, https://listman.redhat.com/archives/libguestfs/2021-August/msg00083.html, https://gitlab.com/nbdkit/nbdkit/-/commit/09a13dafb7bb3a38ab52eb5501cba786365ba7fd, https://gitlab.com/nbdkit/nbdkit/-/commit/6c5faac6a37077cf2366388a80862bb00616d0d8, https://bugzilla.redhat.com/show_bug.cgi?id=1994695.