Vulnerability identifier: #VU79938

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3592

CWE-ID: CWE-401

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Eclipse Mosquitto
Server applications / Other server solutions

Vendor: Eclipse

Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak when processing v5 CONNECT packets. A remote attacker can force the application to leak memory by sending messages with invalid property types.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 2.0.0 - 2.0.15

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External links
http://mosquitto.org/blog/2023/08/version-2-0-16-released/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.