CVE-2019-5019 : Exploit Details and Defense Strategies
Learn about CVE-2019-5019 affecting Antenna House's Rainbow PDF Office Server Document Converter V7.0 Pro R1. Discover the impact, technical details, and mitigation steps.
Rainbow PDF Office Server Document Converter V7.0 Pro R1 (7,0,2018,1113) has a vulnerability in its PowerPoint document conversion function, leading to heap corruption and code execution.
Understanding CVE-2019-5019
The vulnerability in Antenna House's Rainbow PDF Office Server Document Converter V7.0 Pro R1 for Linux64 affects the parsing of the Document Summary Property Set stream.
What is CVE-2019-5019?
The vulnerability arises due to inaccurate verification of the relationship between the size and number of properties in PropertySet packets during the getSummaryInformation function, resulting in an out-of-bounds write.
The Impact of CVE-2019-5019
- 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-2019-5019
The following technical details provide insight into the vulnerability.
Vulnerability Description
The vulnerability is a heap-based buffer overflow in the PowerPoint document conversion function, allowing for heap corruption and potential code execution.
Affected Systems and Versions
- Product: Antenna House Rainbow PDF Office Server Document Converter v7.0 Pro R1 for Linux64 (7,0,2018,1113)
Exploitation Mechanism
The vulnerability occurs during the parsing of the Document Summary Property Set stream when the getSummaryInformation function fails to properly verify the size and number of properties in PropertySet packets.
Mitigation and Prevention
Protect your systems from CVE-2019-5019 with the following measures.
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Monitor vendor communications for security advisories.
- Restrict network access to vulnerable systems.
- Educate users on identifying and avoiding suspicious files.
Long-Term Security Practices
- Implement regular security training for employees.
- Employ network segmentation to limit the impact of potential breaches.
- Conduct regular security audits and vulnerability assessments.
Patching and Updates
- Regularly update and patch software to address known vulnerabilities.