The dissect_rtcp_app function in epan/dissectors/packet-rtcp.c in the RTCP dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.

The dissect_wtp_common function in epan/dissectors/packet-wtp.c in the WTP dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 uses an incorrect data type for a certain length field, which allows remote attackers to cause a denial of service (integer overflow and infinite loop) via a crafted value in a packet.

Integer overflow in the dissect_iscsi_pdu function in epan/dissectors/packet-iscsi.c in the iSCSI dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a malformed packet.

The dissect_isakmp function in epan/dissectors/packet-isakmp.c in the ISAKMP dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 uses an incorrect data structure to determine IKEv2 decryption parameters, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.

Integer overflow in the dissect_icmpv6 function in epan/dissectors/packet-icmpv6.c in the ICMPv6 dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Number of Sources value.

The dissect_eigrp_metric_comm function in epan/dissectors/packet-eigrp.c in the EIGRP dissector in Wireshark 1.8.x before 1.8.4 uses the wrong data type for a certain offset value, which allows remote attackers to cause a denial of service (integer overflow and infinite loop) via a malformed packet.

Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.

epan/dissectors/packet-3g-a11.c in the 3GPP2 A11 dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a zero value in a sub-type length field.

The dissect_sflow_245_address_type function in epan/dissectors/packet-sflow.c in the sFlow dissector in Wireshark 1.8.x before 1.8.4 does not properly handle length calculations for an invalid IP address type, which allows remote attackers to cause a denial of service (infinite loop) via a packet that is neither IPv4 nor IPv6.

epan/dissectors/packet-usb.c in the USB dissector in Wireshark 1.6.x before 1.6.12 and 1.8.x before 1.8.4 relies on a length field to calculate an offset value, which allows remote attackers to cause a denial of service (infinite loop) via a zero value for this field.

Wireshark 1.8.x before 1.8.4 allows remote attackers to obtain sensitive hostname information by reading pcap-ng files.