CVE-2024-8376: mosquitto Use-After-Free — Fix

Description

In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

CWE-416 Use After Free

CWE-755 CWE-755

Affected Products

Vendor	Product	Versions
eclipse	mosquitto	< 2.0.19

References

Advisories & Patches

https://github.com/eclipse-mosquitto/mosquitto/commit/1914b3ee2a18102d0a94cbdbbfeae1afa03edd17 https://github.com/eclipse/mosquitto/releases/tag/v2.0.19

Other References

https://gitlab.eclipse.org/security/cve-assignement/-/issues/26 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/216 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/217 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/218 https://gitlab.eclipse.org/security/vulnerability-reports/-/issues/227 https://mosquitto.org/

Frequently Asked Questions

What is CVE-2024-8376? +

In Eclipse Mosquitto up to version 2.0.18a, an attacker can achieve memory leaking, segmentation fault or heap-use-after-free by sending specific sequences of "CONNECT", "DISCONNECT", "SUBSCRIBE", "UNSUBSCRIBE" and "PUBLISH" packets. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-8376? +

CVE-2024-8376 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-8376? +

CVE-2024-8376 affects products from eclipse, specifically: mosquitto. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-8376? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-8376