CVE-2019-5066 Explained : Impact and Mitigation
Learn about CVE-2019-5066, a critical use-after-free vulnerability in Aspose.PDF 19.2 for C++. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability has been identified in Aspose.PDF 19.2 for C++ that allows exploitation through use-after-free, triggered by processing LZW-compressed streams in a crafted PDF document.
Understanding CVE-2019-5066
This CVE involves a critical use-after-free vulnerability in Aspose.PDF 19.2 for C++.
What is CVE-2019-5066?
CVE-2019-5066 is a vulnerability in Aspose.PDF 19.2 for C++ that arises from processing LZW-compressed streams in a specific manner in a PDF document. This can lead to a use-after-free condition due to a dangling heap pointer.
The Impact of CVE-2019-5066
The vulnerability has a CVSS base score of 9.8, indicating a critical severity level with high impacts on confidentiality, integrity, and availability. It requires no special privileges to exploit and can be triggered over a network without user interaction.
Technical Details of CVE-2019-5066
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in Aspose.PDF 19.2 for C++ allows for a use-after-free condition due to a dangling heap pointer when processing LZW-compressed streams in a crafted PDF document.
Affected Systems and Versions
- Product: Aspose
- Vendor: Talos
- Version: Aspose.PDF 19.2
Exploitation Mechanism
To exploit this vulnerability, a malicious actor needs to craft a PDF document in a specific way and have the targeted application process it, leading to a use-after-free condition.
Mitigation and Prevention
Protective measures to address CVE-2019-5066.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Avoid opening PDF files from untrusted or unknown sources.
- Implement network security measures to detect and block malicious PDF files.
Long-Term Security Practices
- Regularly update software and security patches.
- Conduct security training for users on identifying and handling suspicious files.
Patching and Updates
Ensure that Aspose.PDF 19.2 for C++ is updated with the latest patches to mitigate the vulnerability.