CVE-2019-5126 Explained : Impact and Mitigation
Learn about CVE-2019-5126 affecting Foxit PDF Reader version 9.7.0.29435. This high-severity vulnerability allows arbitrary code execution via specially crafted PDF files.
Foxit PDF Reader version 9.7.0.29435 has a vulnerability in its JavaScript engine that allows arbitrary code execution when a specially crafted PDF file is opened. This CVE has a CVSS base score of 8.8 (High).
Understanding CVE-2019-5126
Foxit PDF Reader version 9.7.0.29435 is susceptible to a use-after-free vulnerability in its JavaScript engine, potentially leading to arbitrary code execution.
What is CVE-2019-5126?
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit PDF Reader, version 9.7.0.29435. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution.
The Impact of CVE-2019-5126
- CVSS Base Score: 8.8 (High)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2019-5126
Foxit PDF Reader version 9.7.0.29435 is affected by a use-after-free vulnerability in its JavaScript engine.
Vulnerability Description
This vulnerability allows an attacker to execute arbitrary code by reusing a previously freed object in the system's memory when a specially crafted PDF file is opened.
Affected Systems and Versions
- Product: Foxit PDF Reader
- Version: 9.7.0.29435
Exploitation Mechanism
To exploit this vulnerability, the user must open a malicious PDF file or visit a malicious website if the browser plugin extension is enabled.
Mitigation and Prevention
Immediate Steps to Take:
- Disable the browser plugin extension if not necessary
- Avoid opening PDF files from untrusted or unknown sources
- Apply security updates and patches provided by Foxit
Long-Term Security Practices:
- Regularly update software and applications
- Educate users on safe browsing habits
- Implement network security measures
- Monitor for unusual activities and file downloads
- Utilize security tools and solutions
- Conduct security audits and assessments
Patching and Updates
Ensure that Foxit PDF Reader is updated to the latest version to mitigate the vulnerability.