Provide references for CVE-2009-4893.
Where can I find more information about CVE-2009-4893?
References are available at: http://security.gentoo.org/glsa/glsa-201006-21.xml, http://www.openwall.com/lists/oss-security/2010/06/14/13, http://www.securityfocus.com/bid/42077, http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt.