CVE-2019-16747 : Vulnerability Insights and Analysis

MatrixSSL prior to version 4.2.2 Open is vulnerable to an invalid pointer free issue in the DTLS server, potentially leading to memory corruption and crashes. This flaw can be exploited by a specially crafted network message.

Understanding CVE-2019-16747

A vulnerability in MatrixSSL that can result in memory corruption and daemon crashes.

What is CVE-2019-16747?

MatrixSSL before version 4.2.2 Open is susceptible to an invalid pointer free issue in the DTLS server, triggered by a crafted network message.

The Impact of CVE-2019-16747

The vulnerability can lead to memory corruption and cause the daemon to crash, impacting the stability and security of the system.

Technical Details of CVE-2019-16747

Details about the vulnerability in MatrixSSL.

Vulnerability Description

An invalid pointer free issue in the DTLS server of MatrixSSL, potentially resulting in memory corruption and crashes.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability is triggered by a specially crafted network message, distinct from a previously identified CVE-2019-14431.

Mitigation and Prevention

Ways to address and prevent the CVE-2019-16747 vulnerability.

Immediate Steps to Take

Update MatrixSSL to version 4.2.2 Open or later to mitigate the vulnerability.
Monitor network traffic for any signs of exploitation.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement network segmentation and access controls to limit exposure.

Patching and Updates

Apply patches and updates provided by MatrixSSL promptly to address security vulnerabilities.