CVE-2020-26537 : Vulnerability Insights and Analysis

An issue was discovered in Foxit Reader and PhantomPDF before 10.1 where a shading calculation error leads to an out-of-bounds write.

Understanding CVE-2020-26537

This CVE identifies a vulnerability in Foxit Reader and PhantomPDF that could be exploited by attackers.

What is CVE-2020-26537?

The vulnerability in Foxit Reader and PhantomPDF before version 10.1 arises from a shading calculation error, resulting in an out-of-bounds write due to an unequal number of outputs compared to color components in a color space.

The Impact of CVE-2020-26537

The vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the shading calculation issue.

Technical Details of CVE-2020-26537

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue in Foxit Reader and PhantomPDF before 10.1 allows for an out-of-bounds write due to a discrepancy in the number of outputs and color components in a color space during shading calculation.

Affected Systems and Versions

Product: Foxit Reader and PhantomPDF
Versions: Before 10.1

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious file and tricking a user into opening it, triggering the shading calculation error.

Mitigation and Prevention

Protecting systems from CVE-2020-26537 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Reader and PhantomPDF to version 10.1 or later to mitigate the vulnerability.
Be cautious when opening files from untrusted sources to prevent potential exploitation.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement security measures such as firewalls and antivirus software to enhance overall system protection.
Educate users on safe browsing habits and the risks associated with opening files from unknown sources.
Monitor security bulletins and updates from Foxit Software for any new information regarding this vulnerability.

Patching and Updates

Ensure that all systems running Foxit Reader and PhantomPDF are updated to the latest version (10.1 or above) to address the shading calculation issue and prevent potential exploitation.