SonicWall Capture Client 3.7.10 & NetExtender <=10.2.337 DoS via sfpmonitor.sys Buffer Overflow
CVE-2023-6340 Published on January 18, 2024
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.
Vulnerability Analysis
CVE-2023-6340 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2023-6340 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2023-6340
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Affected Versions
SonicWall Capture Client:- Version 3.7.10 and earlier versions is affected.
- Version 10.2.337 and earlier versions is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.