Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long URI in an authentication header.
https://gnunet.org/svn/libmicrohttpd/ChangeLog
https://bugzilla.redhat.com/show_bug.cgi?id=1039390
https://bugs.gentoo.org/show_bug.cgi?id=493450
http://www.securityfocus.com/bid/64138
http://www.openwall.com/lists/oss-security/2013/12/09/11