CVE-2019-6753 : Security Advisory and Response

Foxit Reader 9.3.0.10826 allows remote attackers to gain access to sensitive information due to an integer overflow vulnerability in the handling of user-supplied data.

Understanding CVE-2019-6753

This CVE identifies a security flaw in Foxit Reader version 9.3.0.10826 that can be exploited by attackers to execute code within the current process.

What is CVE-2019-6753?

The vulnerability in Foxit Reader 9.3.0.10826 allows attackers to remotely access sensitive information by exploiting an integer overflow issue in the handling of user-supplied data. Attackers can trigger this vulnerability by luring the target to visit a malicious webpage or open a malicious file.

The Impact of CVE-2019-6753

CVSS Base Score: 3.3 (Low severity)
Attack Vector: Local
User Interaction: Required
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Scope: Unchanged
Attack Complexity: Low
Availability Impact: None

Technical Details of CVE-2019-6753

Foxit Reader 9.3.0.10826 is affected by the following:

Vulnerability Description

The vulnerability arises from an integer overflow in the handling of user-supplied data.
Insufficient validation of user input leads to the overflow before writing to memory.
Attackers can exploit this to execute code within the current process.

Affected Systems and Versions

Product: Foxit Reader
Vendor: Foxit
Version: 9.3.0.10826

Exploitation Mechanism

Attackers can exploit the vulnerability by tricking users into visiting a malicious webpage or opening a malicious file.

Mitigation and Prevention

To address CVE-2019-6753, consider the following steps:

Immediate Steps to Take

Update Foxit Reader to the latest version to patch the vulnerability.
Be cautious when visiting unknown websites or opening files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to mitigate known vulnerabilities.
Educate users on safe browsing habits and the risks associated with opening files from unknown sources.

Patching and Updates

Stay informed about security bulletins and advisories from Foxit and other relevant sources to apply patches promptly.