{"id":"OESA-2023-1772","summary":"mosquitto security update","details":"Mosquitto is an open source message broker that implements the MQ Telemetry Transport protocol version 3.1 and 3.1.1 MQTT provides a lightweight method of carrying out messaging using a publish/subscribe model. This makes it suitable for "machine to machine" messaging such as with low power sensors or mobile devices such as phones, embedded computers or micro-controllers like the Arduino.\r\n\r\nSecurity Fix(es):\r\n\r\nIn Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that contains invalid property types.\n(CVE-2023-3592)\r\n\r\nIn Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6\r\n\r\n\n(CVE-2023-5632)","modified":"2025-09-03T06:19:16.224979Z","published":"2023-10-28T11:06:11Z","upstream":["CVE-2023-3592","CVE-2023-5632"],"database_specific":{"severity":"High"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1772"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3592"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5632"}],"affected":[{"package":{"name":"mosquitto","ecosystem":"openEuler:22.03-LTS","purl":"pkg:rpm/openEuler/mosquitto&distro=openEuler-22.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.16-1.oe2203"}]}],"ecosystem_specific":{"x86_64":["mosquitto-debugsource-2.0.16-1.oe2203.x86_64.rpm","mosquitto-devel-2.0.16-1.oe2203.x86_64.rpm","mosquitto-2.0.16-1.oe2203.x86_64.rpm","mosquitto-debuginfo-2.0.16-1.oe2203.x86_64.rpm"],"aarch64":["mosquitto-debuginfo-2.0.16-1.oe2203.aarch64.rpm","mosquitto-devel-2.0.16-1.oe2203.aarch64.rpm","mosquitto-debugsource-2.0.16-1.oe2203.aarch64.rpm","mosquitto-2.0.16-1.oe2203.aarch64.rpm"],"src":["mosquitto-2.0.16-1.oe2203.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2023-1772.json"}}],"schema_version":"1.7.3"}