{"id":"UBUNTU-CVE-2019-5432","details":"A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions \u003c 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding.","modified":"2025-10-24T04:47:27Z","published":"2019-05-06T17:29:00Z","upstream":["CVE-2019-5432"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-5432"},{"type":"REPORT","url":"https://hackerone.com/reports/541354"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-5432"}],"affected":[{"package":{"name":"node-mqtt-packet","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-mqtt-packet@5.4.0-2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"node-mqtt-packet","binary_version":"5.4.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5432.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}