Provide references for CVE-2021-43413.
Where can I find more information about CVE-2021-43413?
References are available at: https://lists.gnu.org/archive/html/bug-hurd/2021-05/msg00079.html, https://www.mail-archive.com/bug-hurd%40gnu.org/msg32113.html, https://lists.gnu.org/archive/html/bug-hurd/2002-11/msg00263.html, https://lists.gnu.org/archive/html/bug-hurd/2005-06/msg00191.html.