CVE-2021-33792 : Vulnerability Insights and Analysis

Foxit Reader and PhantomPDF before version 10.1.4 are impacted by an out-of-bounds write vulnerability through a manipulated /Size key in the Trailer dictionary.

Understanding CVE-2021-33792

This CVE identifier relates to a security issue found in Foxit Reader and PhantomPDF software versions prior to 10.1.4.

What is CVE-2021-33792?

CVE-2021-33792 is a vulnerability identified in Foxit Reader and PhantomPDF products which allows for an out-of-bounds write attack via a specially crafted /Size key in the Trailer dictionary.

The Impact of CVE-2021-33792

The exploitation of this vulnerability could potentially lead to unauthorized modification of memory contents, resulting in a security breach or system compromise.

Technical Details of CVE-2021-33792

This section covers the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability in Foxit Reader and PhantomPDF, versions prior to 10.1.4, enables attackers to perform out-of-bounds write operations using a malicious /Size key within the Trailer dictionary.

Affected Systems and Versions

Foxit Reader and PhantomPDF software versions before 10.1.4 are affected by this security flaw.

Exploitation Mechanism

By exploiting the manipulated /Size key in the Trailer dictionary, threat actors can execute unauthorized write operations, potentially compromising the integrity of the system.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-33792.

Immediate Steps to Take

It is recommended to update Foxit Reader and PhantomPDF to version 10.1.4 or later to mitigate the risk associated with this vulnerability.

Long-Term Security Practices

Implementing robust security measures such as regular software updates, security patches, and employee training can enhance the overall security posture of your organization.

Patching and Updates

Stay informed about security updates and patches released by Foxit Software to address known vulnerabilities in their products.