CVE-2018-3933 : Security Advisory and Response

A vulnerability exists in the Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64, allowing for an exploitable out-of-bounds write in the Microsoft Word document conversion functionality.

Understanding CVE-2018-3933

This CVE involves a stack-based buffer overflow vulnerability in the Antenna House Office Server Document Converter version V6.1 Pro MR2 for Linux64.

What is CVE-2018-3933?

The vulnerability allows for an exploitable out-of-bounds write in the Microsoft Word document conversion feature.
An attacker can trigger remote code execution by using a manipulated Microsoft Word document.
The specific method affected is

vbputanld

.

The Impact of CVE-2018-3933

CVSS Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2018-3933

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability results from a stack-based buffer overflow in the

vbputanld

method.

Affected Systems and Versions

Product: Antenna House
Vendor: Antenna House
Version: Office Server Document Converter version V6.1 Pro MR2 for Linux64 (6,1,2018,0312)

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious Microsoft Word document to trigger the out-of-bounds write.

Mitigation and Prevention

Protecting systems from CVE-2018-3933 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the vendor.
Implement network segmentation to limit the impact of potential attacks.
Educate users about the risks of opening unknown or suspicious documents.

Long-Term Security Practices

Regularly update software and security solutions.
Conduct security assessments and penetration testing to identify vulnerabilities.
Monitor network traffic for any suspicious activities.

Patching and Updates

Stay informed about security updates released by Antenna House.
Apply patches promptly to mitigate the risk of exploitation.