{"id":"UBUNTU-CVE-2017-7652","details":"In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.","modified":"2025-09-08T16:44:12Z","published":"2018-04-25T13:29:00Z","upstream":["CVE-2017-7652"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-7652"},{"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-2017-7652"}],"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":{"availability":"No subscription required","binaries":[{"binary_name":"libmosquitto0","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"libmosquitto0-dev","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"libmosquittopp0","binary_version":"0.15-2+deb7u3ubuntu0.1"},{"binary_name":"libmosquittopp0-dev","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7652.json"}},{"package":{"name":"mosquitto","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.8-1ubuntu0.16.04.4"}]}],"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","1.4.8-1ubuntu0.16.04.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libmosquitto-dev","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"libmosquitto1","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"libmosquittopp-dev","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"libmosquittopp1","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"mosquitto","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"mosquitto-clients","binary_version":"1.4.8-1ubuntu0.16.04.4"},{"binary_name":"mosquitto-dev","binary_version":"1.4.8-1ubuntu0.16.04.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7652.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}