CVE-2023-5632: In 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…

PriorityP338high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.69%

48.1th percentile

In 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

Affected

7 ranges

Vendor	Product	Version range	Fixed in
debian	mosquitto	< mosquitto 2.0.7-1 (bookworm)	mosquitto 2.0.7-1 (bookworm)
eclipse	mosquitto	<= 2.0.5	—
eclipse	mosquitto	—	—
eclipse	mosquitto	>= 0 < 2.0.7-1	2.0.7-1
eclipse	mosquitto	>= 0 < 2.0.7-1	2.0.7-1
eclipse	mosquitto	>= 0 < 2.0.7-1	2.0.7-1
eclipse	mosquitto	>= 0 < 2.0.7-1	2.0.7-1

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5HIGH

vendor_redhat7.5HIGH

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