In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-thread.c had an infinite loop that was addressed by using a correct integer data type.
In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, the UMTS MAC dissector could crash. This was addressed in epan/dissectors/packet-umts_mac.c by rejecting a certain reserved value.
In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, the IEEE 802.11 dissector could crash. This was addressed in epan/crypt/airpdcap.c by rejecting lengths that are too small.
In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, the FCP protocol dissector could crash. This was addressed in epan/dissectors/packet-fcp.c by checking for a NULL pointer.
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the IPMI dissector could crash. This was addressed in epan/dissectors/packet-ipmi-picmg.c by adding support for crafted packets that lack an IPMI header.
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the SIGCOMP dissector could crash. This was addressed in epan/dissectors/packet-sigcomp.c by correcting the extraction of the length value.
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the NBAP dissector could crash. This was addressed in epan/dissectors/asn1/nbap/nbap.cnf by ensuring DCH ID initialization.