CVE-2021-38443 : Security Advisory and Response

Eclipse CycloneDDS versions prior to 0.8.0 are affected by a vulnerability that improperly handles invalid structures, potentially allowing an attacker to write arbitrary values in the XML parser.

Understanding CVE-2021-38443

This CVE describes a security issue in Eclipse CycloneDDS versions before 0.8.0 that could be exploited by attackers.

What is CVE-2021-38443?

CVE-2021-38443 is a vulnerability in Eclipse CycloneDDS that arises from the improper handling of invalid structures, creating a potential security risk for affected systems.

The Impact of CVE-2021-38443

The impact of this vulnerability is rated as MEDIUM based on the CVSS v3.1 scoring system. It could result in high availability impact while posing low confidentiality and integrity risks.

Technical Details of CVE-2021-38443

This section covers specific technical details of the vulnerability.

Vulnerability Description

The vulnerability in Eclipse CycloneDDS stems from the incorrect handling of invalid structures, which may enable malicious actors to insert arbitrary values within the XML parser.

Affected Systems and Versions

The affected product is CycloneDDS by Eclipse, with versions earlier than 0.8.0 being susceptible to this security flaw.

Exploitation Mechanism

The vulnerability can be exploited locally with low attack complexity, requiring minimal user privileges and no user interaction.

Mitigation and Prevention

To address CVE-2021-38443 and enhance system security, the following measures should be taken.

Immediate Steps to Take

Users are advised to apply the latest patches provided by Eclipse for CycloneDDS to eliminate the vulnerability.

Long-Term Security Practices

It is crucial to stay updated on security advisories and promptly apply relevant patches to mitigate future vulnerabilities effectively.

Patching and Updates

Regularly check for updates and security advisories from Eclipse to maintain a secure environment.