CVE-2023-29995 : What You Need to Know

NanoMQ v0.15.0-0 is susceptible to a Heap overflow vulnerability in the copyn_utf8_str function of mqtt_parser.c.

Understanding CVE-2023-29995

This article provides detailed insights into the Heap overflow vulnerability identified in NanoMQ v0.15.0-0.

What is CVE-2023-29995?

CVE-2023-29995 highlights a Heap overflow issue within the copyn_utf8_str function of mqtt_parser.c in NanoMQ v0.15.0-0.

The Impact of CVE-2023-29995

Exploitation of this vulnerability could potentially lead to arbitrary code execution or denial of service (DoS) attacks, posing a serious threat to the security and stability of affected systems.

Technical Details of CVE-2023-29995

Let's delve into the technical aspects of CVE-2023-29995.

Vulnerability Description

The vulnerability arises due to improper handling of memory operations, specifically in the copyn_utf8_str function, opening doors for Heap overflow attacks.

Affected Systems and Versions

All instances of NanoMQ v0.15.0-0 are affected by this vulnerability, regardless of the vendor or specific product version.

Exploitation Mechanism

By exploiting the Heap overflow in the copyn_utf8_str function, threat actors can manipulate memory content, potentially leading to the execution of malicious code or system crashes.

Mitigation and Prevention

To safeguard your systems against CVE-2023-29995, follow the below preventive measures.

Immediate Steps to Take

Disable unnecessary services or limit network exposure if patching is not immediately feasible.
Monitor network traffic for any suspicious activities indicating exploitation attempts.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities promptly.
Implement network segmentation and access controls to restrict unauthorized access.

Patching and Updates

Check for patches or updates released by the software vendor to remediate the Heap overflow vulnerability in NanoMQ v0.15.0-0.