CVE-2019-20828 : Security Advisory and Response

A buffer overflow vulnerability was identified in versions of Foxit Reader and PhantomPDF prior to 9.6, allowing attackers to execute arbitrary code. The issue stems from a lack of looping correction after JavaScript updates Field APs.

Understanding CVE-2019-20828

This CVE involves a critical security flaw in Foxit Reader and PhantomPDF versions before 9.6.

What is CVE-2019-20828?

CVE-2019-20828 is a buffer overflow vulnerability in Foxit Reader and PhantomPDF, enabling potential code execution due to a missing looping correction.

The Impact of CVE-2019-20828

The vulnerability could be exploited by attackers to execute arbitrary code on affected systems, potentially leading to unauthorized access or system compromise.

Technical Details of CVE-2019-20828

This section provides in-depth technical information about the vulnerability.

Vulnerability Description

The issue arises from a buffer overflow in Foxit Reader and PhantomPDF versions prior to 9.6, caused by the absence of a necessary looping correction after JavaScript updates Field APs.

Affected Systems and Versions

Product: Foxit Reader and PhantomPDF
Versions: Before 9.6

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious PDF files and tricking users into opening them, leading to potential code execution.

Mitigation and Prevention

Protecting systems from CVE-2019-20828 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Foxit Reader and PhantomPDF to version 9.6 or later to mitigate the vulnerability.
Exercise caution when opening PDF files from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and applications to the latest versions to patch known vulnerabilities.
Implement robust security measures such as endpoint protection and network monitoring.
Educate users on safe browsing habits and the risks associated with opening files from unfamiliar sources.
Consider using additional security tools like intrusion detection systems to enhance threat detection capabilities.

Patching and Updates

Ensure timely installation of security patches and updates provided by Foxit Software to address CVE-2019-20828.