CVE-2021-38433 : Security Advisory and Response

RTI Connext DDS Professional and Connext DDS Secure versions 4.2x to 6.1.0 are vulnerable to a stack-based buffer overflow, potentially allowing a local attacker to execute arbitrary code.

Understanding CVE-2021-38433

This CVE pertains to a vulnerability in RTI Connext DDS Professional and Connext DDS Secure products, affecting versions 4.2x to 6.1.0.

What is CVE-2021-38433?

CVE-2021-38433 identifies a stack-based buffer overflow in RTI Connext DDS Professional and Connext DDS Secure, versions 4.2x to 6.1.0. This security flaw may enable a local attacker to run arbitrary code on the targeted system.

The Impact of CVE-2021-38433

The vulnerability poses a medium severity risk with a CVSS base score of 6.6. Attack complexity is low, but the availability impact is high, potentially leading to unauthorized code execution.

Technical Details of CVE-2021-38433

The technical details of CVE-2021-38433 include:

Vulnerability Description

The vulnerability involves a stack-based buffer overflow in RTI Connext DDS Professional and Connext DDS Secure, versions 4.2x to 6.1.0.

Affected Systems and Versions

RTI Connext DDS Professional and Connext DDS Secure versions 4.2x to 6.1.0 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited by a local attacker to carry out arbitrary code execution on the target system.

Mitigation and Prevention

To address CVE-2021-38433, consider the following mitigation strategies:

Immediate Steps to Take

Apply the available patches provided by RTI to address the vulnerability.

Long-Term Security Practices

Regularly update and patch RTI Connext DDS Professional and Connext DDS Secure to prevent security breaches.

Patching and Updates

RTI recommends users apply available patches via the customer portal or by contacting RTI Support. Additionally, users can leverage RTI DDS Secure for mitigating network amplification issues.