An update for mosquitto is now available for openEuler-22.03-LTS-SP2 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2023-1659 Final 1.0 1.0 2023-09-15 Initial 2023-09-15 2023-09-15 openEuler SA Tool V1.0 2023-09-15 mosquitto security update An update for mosquitto is now available for openEuler-22.03-LTS-SP2. 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. Security Fix(es): The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function.(CVE-2023-28366) An update for mosquitto is now available for openEuler-22.03-LTS-SP2. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High mosquitto https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1659 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-28366 https://nvd.nist.gov/vuln/detail/CVE-2023-28366 openEuler-22.03-LTS-SP2 mosquitto-2.0.16-1.oe2203sp2.aarch64.rpm mosquitto-debuginfo-2.0.16-1.oe2203sp2.aarch64.rpm mosquitto-debugsource-2.0.16-1.oe2203sp2.aarch64.rpm mosquitto-devel-2.0.16-1.oe2203sp2.aarch64.rpm mosquitto-2.0.16-1.oe2203sp2.src.rpm mosquitto-debugsource-2.0.16-1.oe2203sp2.x86_64.rpm mosquitto-devel-2.0.16-1.oe2203sp2.x86_64.rpm mosquitto-2.0.16-1.oe2203sp2.x86_64.rpm mosquitto-debuginfo-2.0.16-1.oe2203sp2.x86_64.rpm The broker in Eclipse Mosquitto 1.3.2 through 2.x before 2.0.16 has a memory leak that can be abused remotely when a client sends many QoS 2 messages with duplicate message IDs, and fails to respond to PUBREC commands. This occurs because of mishandling of EAGAIN from the libc send function. 2023-09-15 CVE-2023-28366 openEuler-22.03-LTS-SP2 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H mosquitto security update 2023-09-15 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1659