CVE-2020-28621 Explained : Impact and Mitigation

CVE-2020-28621 is a critical vulnerability in the Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1, allowing for multiple code execution vulnerabilities. Attackers can exploit this flaw by providing specially crafted malformed files, leading to out-of-bounds reads and type confusion, ultimately resulting in code execution.

Understanding CVE-2020-28621

This CVE identifies critical code execution vulnerabilities in CGAL libcgal CGAL-5.1.1 due to issues in the Nef polygon-parsing functionality.

What is CVE-2020-28621?

CVE-2020-28621 is a vulnerability in CGAL libcgal CGAL-5.1.1 that allows attackers to execute arbitrary code by providing malicious input.

The Impact of CVE-2020-28621

The vulnerability poses a critical threat with a CVSS base score of 10, indicating a high impact on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2020-28621

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Nef polygon-parsing functionality of CGAL libcgal CGAL-5.1.1 allows for multiple code execution vulnerabilities.

Affected Systems and Versions

Vendor: CGAL Project
Product: libcgal
Affected Version: CGAL-5.1.1

Exploitation Mechanism

Attackers can exploit this vulnerability by providing specially crafted malformed files, triggering out-of-bounds reads and type confusion, leading to code execution.

Mitigation and Prevention

Protecting systems from CVE-2020-28621 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement file input validation to prevent malicious inputs.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Conduct regular security audits and code reviews.
Educate users and developers on secure coding practices.
Keep systems and software up to date with the latest security patches.
Employ network segmentation to limit the impact of potential attacks.
Consider implementing intrusion detection and prevention systems.
Stay informed about emerging threats and vulnerabilities.
Backup critical data regularly to mitigate data loss in case of a successful attack.

Patching and Updates

Refer to the vendor's security advisories for patching instructions and updates.