{"id":"CVE-2019-11779","details":"In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.","modified":"2026-04-16T04:38:01.887337663Z","published":"2019-09-19T14:15:10.573Z","related":["openSUSE-SU-2019:2206-1","openSUSE-SU-2019:2247-1","openSUSE-SU-2024:11057-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4WMHIM64Q35NGTR6R3ILZUL4MA4ANB5/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HFWQBNFTAVHPUYNGYO2TCPF5PCSWC2Z7/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JWNVTFA2CKXERXRYPYE2YFTZP4GNBGYY/"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4137-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4570"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00077.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00008.html"},{"type":"ADVISORY","url":"https://bugs.eclipse.org/bugs/show_bug.cgi?id=551160"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Nov/25"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eclipse/mosquitto","events":[{"introduced":"5e60136449d678948520085985d7e7f91f9e601c"},{"fixed":"f47b56583149850f69c684130170753944ea9c93"},{"introduced":"4555ee79e513d9a6dc5c13d527c56cb2cfdd24d0"},{"fixed":"8c9e448d5c8c79e6c8b49655c7dd4a64e5b3ca54"}],"database_specific":{"versions":[{"introduced":"1.5"},{"fixed":"1.5.9"},{"introduced":"1.6"},{"fixed":"1.6.6"}]}}],"versions":["v1.5","v1.5.1","v1.5.2","v1.5.3","v1.5.4","v1.5.5","v1.5.7","v1.5.8","v1.6","v1.6.1","v1.6.2","v1.6.3","v1.6.4","v1.6.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11779.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"19.04"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0-sp1"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"29"}]},{"events":[{"introduced":"0"},{"last_affected":"30"}]},{"events":[{"introduced":"0"},{"last_affected":"31"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}