CVE-2023-28366

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.

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.

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)

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)

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)

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.

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.

These are all security issues fixed in the libmosquitto1-2.0.18-1.1 package on the GA media of openSUSE Tumbleweed.

Kathrin Kleinhammer discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-34431)

Zhanxiang Song discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input, a remote attacker could possibly use this issue to cause an authorisation bypass. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2021-34434)

Zhanxiang Song, Bin Yuan, DeQing Zou, and Hai Jin discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input, a remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2021-41039)

Zhengjie Du discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-0809)

It was discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input, a remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-3592)

Mischa Bachmann discovered that Mosquitto incorrectly handled certain inputs. If a user or an automated system were provided with a specially crafted input, a remote attacker could possibly use this issue to cause a denial of service. This issue was only fixed in Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-28366)