What is CVE-2018-18764?

CVE-2018-18764 is an arbitrary memory read vulnerability in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13.

How severe is CVE-2018-18764?

CVE-2018-18764 has a severity rating of 9.1 (Critical).

What software versions are affected by CVE-2018-18764?

Cesanta Mongoose version 6.13 is affected by CVE-2018-18764.

How can CVE-2018-18764 be exploited?

CVE-2018-18764 can be exploited by sending a specially crafted MQTT SUBSCRIBE packet.

Are there any references for CVE-2018-18764?

Yes, you can find references for CVE-2018-18764 at the following links: [Link1](https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow1.md), [Link2](https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow2.md).

Vulnerability/
CVE-2018-18764

critical

9.1

CWE

125

28/10/2018

16/9/2024

CVE-2018-18764

First published: Sun Oct 28 2018(Updated: )

An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in a parse_mqtt getu16 call. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Cesanta Mongoose	=6.13

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Frequently Asked Questions

What is CVE-2018-18764?
CVE-2018-18764 is an arbitrary memory read vulnerability in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13.
How severe is CVE-2018-18764?
CVE-2018-18764 has a severity rating of 9.1 (Critical).
What software versions are affected by CVE-2018-18764?
Cesanta Mongoose version 6.13 is affected by CVE-2018-18764.
How can CVE-2018-18764 be exploited?
CVE-2018-18764 can be exploited by sending a specially crafted MQTT SUBSCRIBE packet.
Are there any references for CVE-2018-18764?
Yes, you can find references for CVE-2018-18764 at the following links: [Link1](https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow1.md), [Link2](https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20getu16%20heap%20buffer%20overflow2.md).

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collector/mitre-cve
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vendor/cesanta
canonical/cesanta mongoose
version/cesanta mongoose/6.13

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