An update for mosquitto is now available for openEuler-22.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2023-1716 Final 1.0 1.0 2023-10-13 Initial 2023-10-13 2023-10-13 openEuler SA Tool V1.0 2023-10-13 mosquitto security update An update for mosquitto is now available for openEuler-22.03-LTS-SP1. 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): In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.(CVE-2023-0809) An update for mosquitto is now available for openEuler-22.03-LTS-SP1. openEuler Security has rated this update as having a security impact of medium. 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. Medium mosquitto https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1716 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-0809 https://nvd.nist.gov/vuln/detail/CVE-2023-0809 openEuler-22.03-LTS-SP1 mosquitto-devel-2.0.16-1.oe2203sp1.aarch64.rpm mosquitto-2.0.16-1.oe2203sp1.aarch64.rpm mosquitto-debugsource-2.0.16-1.oe2203sp1.aarch64.rpm mosquitto-debuginfo-2.0.16-1.oe2203sp1.aarch64.rpm mosquitto-2.0.16-1.oe2203sp1.src.rpm mosquitto-debugsource-2.0.16-1.oe2203sp1.x86_64.rpm mosquitto-2.0.16-1.oe2203sp1.x86_64.rpm mosquitto-debuginfo-2.0.16-1.oe2203sp1.x86_64.rpm mosquitto-devel-2.0.16-1.oe2203sp1.x86_64.rpm In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets. 2023-10-13 CVE-2023-0809 openEuler-22.03-LTS-SP1 Medium 5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L mosquitto security update 2023-10-13 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1716