CVE-2021-45341 Explained : Impact and Mitigation

A buffer overflow vulnerability in CDataMoji of the jwwlib component of LibreCAD 2.2.0-rc3 and older allows an attacker to achieve Remote Code Execution using a crafted JWW document.

Understanding CVE-2021-45341

This CVE involves a buffer overflow vulnerability in CDataMoji of the jwwlib component of LibreCAD, potentially enabling Remote Code Execution.

What is CVE-2021-45341?

CVE-2021-45341 refers to a security issue in LibreCAD 2.2.0-rc3 and prior versions, allowing an attacker to execute arbitrary code remotely.

The Impact of CVE-2021-45341

The vulnerability permits malicious actors to exploit a crafted JWW document to gain Remote Code Execution capabilities, posing a severe threat to system security.

Technical Details of CVE-2021-45341

This section outlines specific technical aspects of the CVE.

Vulnerability Description

A buffer overflow flaw in CDataMoji of LibreCAD facilitates Remote Code Execution when processing specially crafted JWW documents.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Affected Versions: LibreCAD 2.2.0-rc3 and earlier

Exploitation Mechanism

The vulnerability can be leveraged by an attacker by exploiting the buffer overflow in the CDataMoji component of LibreCAD to execute arbitrary code remotely.

Mitigation and Prevention

Efficiently addressing and preventing the impact of CVE-2021-45341.

Immediate Steps to Take

Update LibreCAD to the latest version.
Avoid opening JWW documents from untrusted sources.
Implement network segmentation to reduce attack surface.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Conduct security training to enhance user awareness about potential threats.

Patching and Updates

Ensure the timely deployment of security patches and updates to mitigate the vulnerability effectively.