{"id":"USN-4823-1","summary":"mosquitto vulnerability","details":"It was discovered that Mosquitto incorrectly handled certain inputs. A\nremote attacker could possibly use this issue to cause a denial of service.\n","modified":"2026-02-10T04:42:05Z","published":"2021-03-15T22:03:48Z","related":["UBUNTU-CVE-2017-7655"],"upstream":["CVE-2017-7655","UBUNTU-CVE-2017-7655"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4823-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-7655"}],"affected":[{"package":{"name":"mosquitto","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@1.4.8-1ubuntu0.16.04.7+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.8-1ubuntu0.16.04.7+esm1"}]}],"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","1.4.8-1ubuntu0.16.04.4","1.4.8-1ubuntu0.16.04.5","1.4.8-1ubuntu0.16.04.6","1.4.8-1ubuntu0.16.04.7"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libmosquitto-dev","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"libmosquitto1","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"libmosquittopp-dev","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"libmosquittopp1","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"mosquitto","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"mosquitto-clients","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"},{"binary_name":"mosquitto-dev","binary_version":"1.4.8-1ubuntu0.16.04.7+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4823-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2017-7655","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"mosquitto","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mosquitto@1.4.15-2ubuntu0.18.04.3+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.15-2ubuntu0.18.04.3+esm1"}]}],"versions":["1.4.12-1","1.4.14-1","1.4.14-2","1.4.14-2build1","1.4.15-1","1.4.15-2","1.4.15-2ubuntu0.18.04.1","1.4.15-2ubuntu0.18.04.2","1.4.15-2ubuntu0.18.04.3"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libmosquitto-dev","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"libmosquitto1","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"libmosquittopp-dev","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"libmosquittopp1","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"mosquitto","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"mosquitto-clients","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"},{"binary_name":"mosquitto-dev","binary_version":"1.4.15-2ubuntu0.18.04.3+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4823-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2017-7655","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}