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CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0

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. El intermediario en Eclipse Mosquitto 1.3.2 hasta 2.x anterior a 2.0.16 tiene una pérdida de memoria de la que se puede abusar de forma remota cuando un cliente envía muchos mensajes QoS 2 con ID de mensajes duplicados y no responde a los comandos PUBREC. Esto ocurre debido a un mal manejo de EAGAIN desde la función de envío de libc. A memory leak vulnerability was found in Eclipse Mosquitto. • https://github.com/eclipse/mosquitto/commit/6113eac95a9df634fbc858be542c4a0456bfe7b9 https://github.com/eclipse/mosquitto/compare/v2.0.15...v2.0.16 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJ2FMBGVVQEQWTTQB7YLKTAHMX2UM66X https://mosquitto.org/blog/2023/08/version-2-0-16-released https://security.gentoo.org/glsa/202401-09 https://www.compass-security.com/fileadmin/Research/Advisories/2023_02_CSNC-2023-001_Eclipse_Mosquitto_Memory_Leak.txt https://www.debian&# • CWE-401: Missing Release of Memory after Effective Lifetime •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1

In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service. En las versiones 1.6 a 2.0.11 de Eclipse Mosquitto, un cliente MQTT v5 que se conecte con un gran número de propiedades de usuario podría causar un uso excesivo de la CPU, conllevando a una pérdida de rendimiento y una posible denegación de servicio • https://bugs.eclipse.org/bugs/show_bug.cgi?id=575314 https://www.debian.org/security/2023/dsa-5511 • CWE-1050: Excessive Platform Resource Consumption within a Loop •

CVSS: 5.3EPSS: 0%CPEs: 3EXPL: 1

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked. En Eclipse Mosquitto versiones 2.0 hasta 2.0.11, cuando se usa el plugin de seguridad dinámica, si se revoca la habilidad de un cliente para realizar suscripciones en un tema cuando un cliente duradero está fuera de línea, las suscripciones existentes para ese cliente no son revocadas. • https://bugs.eclipse.org/bugs/show_bug.cgi?id=575324 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K4WWGVF5BUFPYPCFUPPP4KRIYI5OTJN2 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RLUUM52Y6AEICPXPSRRXC6OBY4H5XKW7 https://www.debian.org/security/2023/dsa-5511 • CWE-285: Improper Authorization CWE-863: Incorrect Authorization •

CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 1

In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0. En Eclipse Mosquitto versiones 2.07 y anteriores, el servidor se bloqueará si el cliente intenta enviar un paquete PUBLISH con longitud de tema = 0 • https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141 • CWE-20: Improper Input Validation •

CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker. En Eclipse Mosquitto versiones 1.6 hasta 2.0.10, si un cliente autenticado que se había conectado con MQTT versión v5 enviaba un mensaje CONNECT diseñado al broker, ocurriría una pérdida de memoria, que podría ser usada para proporcionar un ataque DoS contra el broker • https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191 • CWE-401: Missing Release of Memory after Effective Lifetime •