azure-umqtt-c (available through GitHub prior to 2017 October 6) allows remote attackers to cause a denial of service via unspecified vectors.
{ "versions": [ { "introduced": "0" }, { "fixed": "2017-10-06" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5917.json"