In Wireshark 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7, the CoAP protocol dissector could crash. This was addressed in epan/dissectors/packet-coap.c by properly checking for a NULL condition.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-14367.json"