The (1) SMB and (2) SMB2 dissectors in Wireshark 0.9.0 through 1.2.4 allow remote attackers to cause a denial of service (crash) via a crafted packet that triggers a NULL pointer dereference, as demonstrated by fuzz-2009-12-07-11141.pcap.
Integer overflow in wiretap/erf.c in Wireshark before 1.2.2 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted erf file, related to an "unsigned integer wrap vulnerability."
Unspecified vulnerability in the OpcUa (OPC UA) dissector in Wireshark 0.99.6 through 1.0.8 and 1.2.0 through 1.2.1 allows remote attackers to cause a denial of service (memory and CPU consumption) via malformed OPCUA Service CallRequest packets.