In Wireshark 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9, the MS-WSP protocol dissector could crash. This was addressed in epan/dissectors/packet-mswsp.c by properly handling NULL return values.
{ "versions": [ { "introduced": "2.4.0" }, { "last_affected": "2.4.9" }, { "introduced": "2.6.0" }, { "last_affected": "2.6.3" } ] }
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-18227.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "9.0" } ] } ]