CVE-2023-33876 Explained : Impact and Mitigation
Learn about CVE-2023-33876, a high-severity use-after-free vulnerability in Foxit Reader 12.1.2.15332 that allows arbitrary code execution. Discover impact, technical details, and mitigation strategies.
A detailed overview of the use-after-free vulnerability in Foxit Reader 12.1.2.15332 that can lead to arbitrary code execution when handling annotations.
Understanding CVE-2023-33876
This section delves into the impact, technical details, and mitigation strategies for CVE-2023-33876.
What is CVE-2023-33876?
CVE-2023-33876 is a use-after-free vulnerability in Foxit Reader 12.1.2.15332 that arises from mishandling annotations, allowing an attacker to execute arbitrary code through a malicious PDF document. The exploitation requires user interaction to open the malicious file or visit a crafted site.
The Impact of CVE-2023-33876
With a CVSS base score of 8.8 (High), this vulnerability poses a severe threat as it can lead to memory corruption and arbitrary code execution. It affects Foxit Reader version 12.1.2.15332.
Technical Details of CVE-2023-33876
The vulnerability description, affected systems, and exploitation mechanism are discussed herein.
Vulnerability Description
The use-after-free flaw in Foxit Reader 12.1.2.15332 allows for the reuse of freed objects, resulting in memory corruption and potential code execution through specially crafted JavaScript within a PDF.
Affected Systems and Versions
Foxit Reader version 12.1.2.15332 is confirmed to be affected by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability by embedding malicious code within a PDF file and tricking users into opening it or directing them to a compromised site.
Mitigation and Prevention
Learn about the immediate steps and long-term best practices to secure your systems against CVE-2023-33876.
Immediate Steps to Take
Users are advised to update Foxit Reader to a patched version, avoid opening unsolicited PDF files, and disable the browser plugin extension.
Long-Term Security Practices
Regularly update software, exercise caution when interacting with PDF files, and implement security measures to prevent similar vulnerabilities.
Patching and Updates
Stay informed about security updates from Foxit Reader and promptly apply patches to mitigate the risk of exploitation.