CVE-2022-23803 : Security Advisory and Response

A stack-based buffer overflow vulnerability has been discovered in KiCad EDA 6.0.1 and the master commit de006fc010, specifically in the Gerber Viewer's coordinate parsing functionality. This vulnerability could allow an attacker to execute arbitrary code by exploiting specially-crafted gerber or excellon files.

Understanding CVE-2022-23803

This section provides an overview of the critical details regarding the CVE-2022-23803 vulnerability.

What is CVE-2022-23803?

CVE-2022-23803 is a stack-based buffer overflow vulnerability found in KiCad EDA versions 6.0.1 and master commit de006fc010. The flaw resides in the Gerber Viewer's gerber and excellon ReadXYCoord coordinate parsing feature.

The Impact of CVE-2022-23803

With a CVSS base score of 7.8, this vulnerability poses a high risk. An attacker can exploit this flaw by providing a malicious gerber or excellon file, potentially leading to code execution. The confidentiality, integrity, and availability of the affected system are at significant risk.

Technical Details of CVE-2022-23803

This section dives into the specific technical aspects of the CVE-2022-23803 vulnerability.

Vulnerability Description

The stack-based buffer overflow vulnerability in KiCad EDA allows threat actors to trigger arbitrary code execution by crafting malicious gerber or excellon files.

Affected Systems and Versions

KiCad EDA versions 6.0.1 and the master commit de006fc010 are impacted by this vulnerability. Users of these versions should be aware of the associated risks and potential exploits.

Exploitation Mechanism

The vulnerability can be exploited by an attacker who provides a specially-crafted gerber or excellon file to the affected system, enabling them to execute malicious code.

Mitigation and Prevention

To safeguard your systems from CVE-2022-23803, it is crucial to implement appropriate mitigation strategies and security measures.

Immediate Steps to Take

Users are advised to update their KiCad EDA software to a patched version that addresses the stack-based buffer overflow vulnerability. Additionally, exercise caution while handling gerber and excellon files from untrusted sources.

Long-Term Security Practices

In the long term, organizations should prioritize regular software updates, security training for employees, and the implementation of secure coding practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by KiCad. Regularly check for new releases and apply updates promptly to protect your systems from potential exploits.