{"id":"UBUNTU-CVE-2017-7651","details":"In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.","modified":"2026-04-22T12:30:59.239273Z","published":"2018-04-24T14:29:00Z","upstream":["CVE-2017-7651"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-7651"},{"type":"REPORT","url":"http://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-7651"}],"affected":[{"package":{"name":"mosquitto","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@0.15-2+deb7u3ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.15-2+deb7u3ubuntu0.1"}]}],"versions":["0.15-2ubuntu1","0.15-2ubuntu1.1","0.15-2ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmosquitto0","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"libmosquittopp0","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"mosquitto","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"mosquitto-clients","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"python-mosquitto","binary_version":"0.15-2+deb7u3ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7651.json"}},{"package":{"name":"mosquitto","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.8-1ubuntu0.16.04.3"}]}],"versions":["1.4.3-1","1.4.4-1","1.4.7-1","1.4.8-1","1.4.8-1build1","1.4.8-1ubuntu0.16.04.1","1.4.8-1ubuntu0.16.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmosquitto1","binary_version":"1.4.8-1ubuntu0.16.04.3"},{"binary_name":"libmosquittopp1","binary_version":"1.4.8-1ubuntu0.16.04.3"},{"binary_name":"mosquitto","binary_version":"1.4.8-1ubuntu0.16.04.3"},{"binary_name":"mosquitto-clients","binary_version":"1.4.8-1ubuntu0.16.04.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7651.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}