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mosquitto vulnerabilities and exploits
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7.5
CVSSv3
CVE-2023-28366
The broker in Eclipse Mosquitto 1.3.2 up to and including 2.x prior to 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 fr...
Eclipse Mosquitto
7.5
CVSSv3
CVE-2018-20145
Eclipse Mosquitto 1.5.x prior to 1.5.5 allows ACL bypass: if the option per_listener_settings was set to true, and the default listener was in use, and the default listener specified an acl_file, then the acl file was being ignored.
Eclipse Mosquitto
7.5
CVSSv3
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, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack....
Eclipse Mosquitto
6.5
CVSSv3
CVE-2021-28166
In Eclipse Mosquitto version 2.0.0 to 2.0.9, if an authenticated client that had connected with MQTT v5 sent a crafted CONNACK message to the broker, a NULL pointer dereference would occur.
Eclipse Mosquitto
1 Github repository
7.5
CVSSv3
CVE-2018-12543
In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.
Eclipse Mosquitto
2 Github repositories
5.3
CVSSv3
CVE-2023-0809
In Mosquitto prior to 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.
Eclipse Mosquitto
8.1
CVSSv3
CVE-2018-12550
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour ...
Eclipse Mosquitto
8.1
CVSSv3
CVE-2018-12551
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clie...
Eclipse Mosquitto
5.4
CVSSv3
CVE-2019-11778
If an MQTT v5 client connects to Eclipse Mosquitto versions 1.6.0 to 1.6.4 inclusive, sets a last will and testament, sets a will delay interval, sets a session expiry interval, and the will delay interval is set longer than the session expiry interval, then a use after free erro...
Eclipse Mosquitto
7.5
CVSSv3
CVE-2021-34432
In Eclipse Mosquitto versions 2.07 and previous versions, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.
Eclipse Mosquitto
1 Github repository
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-27802
template injection
CVE-2024-0044
code injection
CVE-2024-35474
CVE-2024-27857
CVE-2024-23251
CVE-2024-23692
physical
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