The pcapng_read_if_descr_block function in wiretap/pcapng.c in the pcapng parser in Wireshark 1.12.x before 1.12.8 uses too many levels of pointer indirection, which allows remote attackers to cause a denial of service (incorrect free and application crash) via a crafted packet that triggers interface-filter copying.

The dissect_wccp2r1_address_table_info function in epan/dissectors/packet-wccp.c in the WCCP dissector in Wireshark 1.12.x before 1.12.7 does not prevent the conflicting use of a table for both IPv4 and IPv6 addresses, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

The ptvcursor_add function in the ptvcursor implementation in epan/proto.c in Wireshark 1.12.x before 1.12.7 does not check whether the expected amount of data is available, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

The dissect_openflow_tablemod_v5 function in epan/dissectors/packet-openflow_v5.c in the OpenFlow dissector in Wireshark 1.12.x before 1.12.7 does not validate a certain offset value, which allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.

The dissect_wa_payload function in epan/dissectors/packet-waveagent.c in the WaveAgent dissector in Wireshark 1.12.x before 1.12.7 mishandles large tag values, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

epan/dissectors/packet-gsm_rlcmac.c in the GSM RLC/MAC dissector in Wireshark 1.12.x before 1.12.7 uses incorrect integer data types, which allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.

The dissect_zbee_secure function in epan/dissectors/packet-zbee-security.c in the ZigBee dissector in Wireshark 1.12.x before 1.12.7 improperly relies on length fields contained in packet data, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

The dissector-table implementation in epan/packet.c in Wireshark 1.12.x before 1.12.7 mishandles table searches for empty strings, which allows remote attackers to cause a denial of service (application crash) via a crafted packet, related to the (1) dissector_get_string_handle and (2) dissector_get_default_string_handle functions.

The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in the memory manager in Wireshark 1.12.x before 1.12.7 does not properly consider a certain case of multiple realloc operations that restore a memory chunk to its original size, which allows remote attackers to cause a denial of service (incorrect free operation and application crash) via a crafted packet.

The proto_tree_add_bytes_item function in epan/proto.c in the protocol-tree implementation in Wireshark 1.12.x before 1.12.7 does not properly terminate a data structure after a failure to locate a number within a string, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

epan/dissectors/packet-gsm_a_dtap.c in the GSM DTAP dissector in Wireshark 1.12.x before 1.12.6 does not properly validate digit characters, which allows remote attackers to cause a denial of service (application crash) via a crafted packet, related to the de_emerg_num_list and de_bcd_num functions.

The dissect_wccp2r1_address_table_info function in epan/dissectors/packet-wccp.c in the WCCP dissector in Wireshark 1.12.x before 1.12.6 does not properly determine whether enough memory is available for storing IP address strings, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.