What is CVE-2023-2905?

CVE-2023-2905 is a heap-based buffer overflow vulnerability in Cesanta Mongoose web server version 7.10 and is rated with a severity score of 8.8.

How does CVE-2023-2905 affect Cesanta Mongoose?

CVE-2023-2905 affects Cesanta Mongoose web server version 7.10 and prior, allowing a heap-based buffer overflow due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header.

What is the severity of CVE-2023-2905?

CVE-2023-2905 has a severity score of 8.8, which is classified as high.

How can I fix CVE-2023-2905?

To fix CVE-2023-2905, upgrade to Cesanta Mongoose version 7.11 or later which includes a fix for the vulnerability.

Where can I find more information about CVE-2023-2905?

You can find more information about CVE-2023-2905 on the official CVE website or the GitHub pages related to Cesanta Mongoose.

Vulnerability/
CVE-2023-2905

high

8.8

CWE

787 122 119

9/8/2023

10/10/2024

CVE-2023-2905: Cesanta Mongoose MQTT Message Parsing Heap Overflow

First published: Wed Aug 09 2023(Updated: )

Due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header, Cesanta Mongoose, an embeddable web server, version 7.10 is susceptible to a heap-based buffer overflow vulnerability in the default configuration. Version 7.9 and prior does not appear to be vulnerable. This issue is resolved in version 7.11.

Credit: cve@takeonme.org cve@takeonme.org

Affected Software	Affected Version	How to fix
Cesanta Mongoose	=7.10

Remedy

https://github.com/cesanta/mongoose/pull/2274

Remedy

https://takeonme.org/cves/CVE-2023-2905.html

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Reference Links

Frequently Asked Questions

What is CVE-2023-2905?
CVE-2023-2905 is a heap-based buffer overflow vulnerability in Cesanta Mongoose web server version 7.10 and is rated with a severity score of 8.8.
How does CVE-2023-2905 affect Cesanta Mongoose?
CVE-2023-2905 affects Cesanta Mongoose web server version 7.10 and prior, allowing a heap-based buffer overflow due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header.
What is the severity of CVE-2023-2905?
CVE-2023-2905 has a severity score of 8.8, which is classified as high.
How can I fix CVE-2023-2905?
To fix CVE-2023-2905, upgrade to Cesanta Mongoose version 7.11 or later which includes a fix for the vulnerability.
Where can I find more information about CVE-2023-2905?
You can find more information about CVE-2023-2905 on the official CVE website or the GitHub pages related to Cesanta Mongoose.

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