{"id":"USN-3374-1","summary":"rabbitmq-server vulnerability","details":"It was discovered that RabbitMQ incorrectly handled MQTT (MQ Telemetry\nTransport) authentication. A remote attacker could use this issue to\nauthenticate successfully with an existing username by omitting the\npassword.\n","modified":"2026-02-10T04:41:11Z","published":"2017-07-31T17:01:00Z","related":["UBUNTU-CVE-2016-9877"],"upstream":["CVE-2016-9877","UBUNTU-CVE-2016-9877"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3374-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-9877"}],"affected":[{"package":{"name":"rabbitmq-server","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/rabbitmq-server@3.2.4-1ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.4-1ubuntu0.1"}]}],"versions":["3.1.3-1","3.1.5-1","3.2.0-1","3.2.1-1","3.2.2-1","3.2.3-1","3.2.4-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"rabbitmq-server","binary_version":"3.2.4-1ubuntu0.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2016-9877","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3374-1.json"}},{"package":{"name":"rabbitmq-server","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/rabbitmq-server@3.5.7-1ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.7-1ubuntu0.16.04.2"}]}],"versions":["3.5.4-1","3.5.4-3","3.5.4-3.1","3.5.7-1","3.5.7-1ubuntu0.16.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"rabbitmq-server","binary_version":"3.5.7-1ubuntu0.16.04.2"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2016-9877","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3374-1.json"}}],"schema_version":"1.7.3"}