#VU99569 Out-of-bounds read in Eclipse Mosquitto - CVE-2024-10525

Vulnerability identifier: #VU99569

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-10525

CWE-ID: CWE-125

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 gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when handling SUBACK packets with no reason codes. A remote attacker can send specially crafted SUBACK packets to the application, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Eclipse Mosquitto: 2.0.0 - 2.0.18

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External links
https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/190
https://mosquitto.org/blog/2024/10/version-2-0-19-released/
https://github.com/eclipse-mosquitto/mosquitto/commit/8ab20b4ba4204fdcdec78cb4d9f03c944a6e0e1c

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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.