The lookupProviders function in providerMgr.c in sblim-sfcb 1.3.4 and 1.3.18 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty className in a packet.
http://www.securityfocus.com/bid/91212
http://lists.opensuse.org/opensuse-updates/2015-09/msg00019.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172667.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172659.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172634.html