What is the severity of CVE-2023-6340?

CVE-2023-6340 is classified as a Denial-of-Service vulnerability due to a stack-based buffer overflow.

How do I fix CVE-2023-6340?

To fix CVE-2023-6340, update SonicWall Capture Client to version 3.7.11 or later and NetExtender to version 10.2.338 or later.

What systems are affected by CVE-2023-6340?

CVE-2023-6340 affects SonicWall Capture Client versions up to 3.7.10 and NetExtender versions up to 10.2.337.

What does the sfpmonitor.sys driver do in relation to CVE-2023-6340?

The sfpmonitor.sys driver is the component that contains the stack-based buffer overflow vulnerability in CVE-2023-6340.

What are the potential impacts of CVE-2023-6340?

The potential impact of CVE-2023-6340 includes denial-of-service conditions that can cause interruptions in service availability.

Vulnerability/
CVE-2023-6340

medium

5.5

CWE

121 119 787

17/1/2024

30/8/2024

CVE-2023-6340: Buffer Overflow

First published: Wed Jan 17 2024(Updated: )

SonicWall Capture Client version 3.7.10, NetExtender client version 10.2.337 and earlier versions are installed with sfpmonitor.sys driver. The driver has been found to be vulnerable to Denial-of-Service (DoS) caused by Stack-based Buffer Overflow vulnerability.

Credit: PSIRT@sonicwall.com

Affected Software	Affected Version	How to fix
SonicWall Capture Client	<=3.7.10
SonicWall NetExtender	<=10.2.337

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Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019

Frequently Asked Questions

What is the severity of CVE-2023-6340?
CVE-2023-6340 is classified as a Denial-of-Service vulnerability due to a stack-based buffer overflow.
How do I fix CVE-2023-6340?
To fix CVE-2023-6340, update SonicWall Capture Client to version 3.7.11 or later and NetExtender to version 10.2.338 or later.
What systems are affected by CVE-2023-6340?
CVE-2023-6340 affects SonicWall Capture Client versions up to 3.7.10 and NetExtender versions up to 10.2.337.
What does the sfpmonitor.sys driver do in relation to CVE-2023-6340?
The sfpmonitor.sys driver is the component that contains the stack-based buffer overflow vulnerability in CVE-2023-6340.
What are the potential impacts of CVE-2023-6340?
The potential impact of CVE-2023-6340 includes denial-of-service conditions that can cause interruptions in service availability.

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canonical/sonicwall netextender
version/sonicwall netextender/10.2.337

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