CVE-2019-5854 : Exploit Details and Defense Strategies
Learn about CVE-2019-5854, an integer overflow vulnerability in PDFium in Google Chrome versions before 76.0.3809.87, allowing remote attackers to exploit heap corruption via crafted PDF files.
A potential vulnerability was identified in Google Chrome version prior to 76.0.3809.87, specifically in the PDFium software component. This vulnerability, known as integer overflow, gives a remote attacker the ability to potentially exploit heap corruption by using a specially crafted PDF file.
Understanding CVE-2019-5854
This CVE-2019-5854 affects Google Chrome versions prior to 76.0.3809.87 due to an integer overflow vulnerability in the PDFium software component.
What is CVE-2019-5854?
CVE-2019-5854 is an integer overflow vulnerability in PDFium in Google Chrome versions before 76.0.3809.87. It allows a remote attacker to potentially exploit heap corruption through a maliciously crafted PDF file.
The Impact of CVE-2019-5854
The vulnerability could be exploited by a remote attacker to trigger heap corruption, potentially leading to arbitrary code execution or system crashes.
Technical Details of CVE-2019-5854
This section provides more technical insights into the CVE-2019-5854 vulnerability.
Vulnerability Description
The vulnerability in PDFium in Google Chrome versions prior to 76.0.3809.87 allows for an integer overflow, which can be leveraged by a remote attacker to exploit heap corruption.
Affected Systems and Versions
- Product: Chrome
- Vendor: Google
- Affected Versions: < 76.0.3809.87
Exploitation Mechanism
The vulnerability can be exploited by a remote attacker through a specially crafted PDF file to trigger heap corruption in the PDFium software component.
Mitigation and Prevention
To address CVE-2019-5854 and enhance security, follow these mitigation strategies:
Immediate Steps to Take
- Update Google Chrome to version 76.0.3809.87 or later.
- Avoid opening PDF files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and applications to the latest versions.
- Implement network security measures to detect and prevent malicious PDF files.
Patching and Updates
- Apply security patches and updates provided by Google promptly to mitigate the vulnerability.