httpAdapter.c in sblim-sfcb before 0.9.2 allows remote attackers to cause a denial of service (resource consumption) by connecting to sblim-sfcb but not sending any data.
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.