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CVE-2018-3997 : Vulnerability Insights and Analysis

Learn about CVE-2018-3997, a critical vulnerability in Foxit PDF Reader version 9.2.0.9297 allowing arbitrary code execution. Find mitigation steps and preventive measures here.

A JavaScript engine vulnerability in Foxit PDF Reader version 9.2.0.9297 allows for arbitrary code execution by reusing freed memory objects when opening malicious PDFs or visiting compromised websites.

Understanding CVE-2018-3997

This CVE involves a critical vulnerability in Foxit PDF Reader that can lead to remote code execution.

What is CVE-2018-3997?

        Foxit PDF Reader version 9.2.0.9297 is susceptible to a JavaScript engine flaw that enables attackers to execute arbitrary code.
        The vulnerability arises from reusing freed memory objects, triggered by opening specially crafted PDF files or accessing malicious websites.

The Impact of CVE-2018-3997

        CVSS Score: 8 (High Severity)
        Attack Vector: Network
        Attack Complexity: Low
        Privileges Required: Low
        User Interaction: Required
        Confidentiality, Integrity, and Availability Impact: High
        Successful exploitation could result in arbitrary code execution.

Technical Details of CVE-2018-3997

This section delves into the specifics of the vulnerability.

Vulnerability Description

        The vulnerability allows for the reuse of freed memory objects, leading to arbitrary code execution.

Affected Systems and Versions

        Affected Product: Foxit PDF Reader
        Vendor: Foxit Software
        Affected Version: 9.2.0.9297

Exploitation Mechanism

        Attackers can exploit this vulnerability by tricking users into opening malicious PDF documents or by directing them to compromised websites.

Mitigation and Prevention

Protecting systems from CVE-2018-3997 requires immediate actions and long-term security practices.

Immediate Steps to Take

        Disable the browser plugin extension for Foxit PDF Reader if not essential.
        Avoid opening PDF files from untrusted or unknown sources.
        Regularly update the software to the latest version.

Long-Term Security Practices

        Educate users on safe browsing habits and the risks associated with opening unknown files.
        Implement network security measures to detect and block malicious content.

Patching and Updates

        Ensure timely installation of security patches and updates provided by Foxit Software to address this vulnerability.

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