CVE-2019-9139 : Exploit Details and Defense Strategies
Learn about CVE-2019-9139, a high-severity Integer overflow vulnerability in DaviewIndy versions prior to 8.98.8, enabling arbitrary code execution. Find mitigation steps and preventive measures here.
A security vulnerability in DaviewIndy versions prior to 8.98.8 could allow attackers to execute arbitrary code by exploiting an Integer overflow issue when handling corrupted PDF files.
Understanding CVE-2019-9139
This CVE involves a high-severity vulnerability in DaviewIndy software that could lead to arbitrary code execution.
What is CVE-2019-9139?
The CVE-2019-9139 vulnerability is an Integer overflow flaw in DaviewIndy versions 8.98.7 and earlier, triggered by opening malformed PDF files mishandled by the Daview.exe program.
The Impact of CVE-2019-9139
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2019-9139
This section provides detailed technical information about the CVE-2019-9139 vulnerability.
Vulnerability Description
The vulnerability arises from an Integer overflow issue in DaviewIndy, allowing attackers to trigger arbitrary code execution by exploiting the mishandling of corrupted PDF files.
Affected Systems and Versions
- Affected Product: DaviewIndy
- Vendor: HumanTalk Co,Ltd
- Vulnerable Versions: 8.98.7 and earlier
Exploitation Mechanism
Attackers can exploit this vulnerability by enticing users to open a malicious PDF file, leading to the execution of arbitrary code.
Mitigation and Prevention
To safeguard systems from CVE-2019-9139, follow these mitigation strategies:
Immediate Steps to Take
- Update DaviewIndy to version 8.98.8 or later to apply the fix.
- Avoid opening PDF files from untrusted or unknown sources.
Long-Term Security Practices
- Regularly update software and security patches to prevent known vulnerabilities.
- Educate users on safe browsing habits and the risks associated with opening files from unfamiliar sources.
Patching and Updates
- Apply security updates and patches provided by HumanTalk Co,Ltd to address the Integer overflow vulnerability in DaviewIndy.