CVE-2021-45342 : Vulnerability Insights and Analysis
Learn about CVE-2021-45342, a critical buffer overflow vulnerability in LibreCAD 2.2.0-rc3 and older versions, enabling Remote Code Execution through crafted JWW documents. Find mitigation steps and updates.
CVE-2021-45342 is a buffer overflow vulnerability in CDataList of the jwwlib component of LibreCAD 2.2.0-rc3 and older, allowing for Remote Code Execution using a crafted JWW document.
Understanding CVE-2021-45342
What is CVE-2021-45342?
The vulnerability allows an attacker to execute arbitrary code remotely by exploiting a buffer overflow bug in LibreCAD.
The Impact of CVE-2021-45342
The exploit could lead to the compromise of affected systems, potentially resulting in unauthorized access and control by malicious actors.
Technical Details of CVE-2021-45342
Vulnerability Description
A buffer overflow vulnerability in CDataList of the jwwlib component of LibreCAD 2.2.0-rc3 and older enables Remote Code Execution via a specially crafted JWW document.
Affected Systems and Versions
- Affected Software: LibreCAD 2.2.0-rc3 and older
Exploitation Mechanism
The vulnerability can be exploited by an attacker using a manipulated JWW document to trigger the buffer overflow and execute malicious code.
Mitigation and Prevention
Immediate Steps to Take
- Update LibreCAD to the latest version
- Implement network controls to restrict access to vulnerable systems
Long-Term Security Practices
- Conduct regular security assessments and code reviews
- Educate users on safe document handling practices
Patching and Updates
Apply all security patches and updates provided by LibreCAD to address the vulnerability.