Multiple integer signedness errors in the tvb_unmasked function in epan/dissectors/packet-websocket.c in the Websocket dissector in Wireshark 1.8.x before 1.8.7 allow remote attackers to cause a denial of service (application crash) via a malformed packet.
Multiple integer overflows in Wireshark 1.8.x before 1.8.7 allow remote attackers to cause a denial of service (loop or application crash) via a malformed packet, related to a crash of the Websocket dissector, an infinite loop in the MySQL dissector, and a large loop in the ETCH dissector.
The dissect_dsmcc_un_download function in epan/dissectors/packet-mpeg-dsmcc.c in the MPEG DSM-CC dissector in Wireshark 1.8.x before 1.8.7 uses an incorrect format string, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.
epan/dissectors/packet-dcp-etsi.c in the DCP ETSI dissector in Wireshark 1.8.x before 1.8.7 uses incorrect integer data types, which allows remote attackers to cause a denial of service (integer overflow, and heap memory corruption or NULL pointer dereference, and application crash) via a malformed packet.
The dissect_ccp_bsdcomp_opt function in epan/dissectors/packet-ppp.c in the PPP CCP dissector in Wireshark 1.8.x before 1.8.7 does not terminate a bit-field list, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.