CVE-2019-8273 : Security Advisory and Response
Learn about CVE-2019-8273, a heap buffer overflow vulnerability in UltraVNC revision 1211, potentially allowing malicious code execution. Find out how to mitigate and prevent this security issue.
A heap buffer overflow vulnerability in UltraVNC revision 1211 has been identified, potentially allowing the execution of malicious code through network connectivity. The issue has been resolved in revision 1212.
Understanding CVE-2019-8273
This CVE involves a heap buffer overflow vulnerability in UltraVNC, affecting version 1.2.2.3.
What is CVE-2019-8273?
The vulnerability exists in the VNC server code within the file transfer request handler of UltraVNC revision 1211, allowing attackers to execute malicious code.
The Impact of CVE-2019-8273
The vulnerability could lead to the execution of arbitrary code by attackers exploiting the heap buffer overflow in UltraVNC revision 1211.
Technical Details of CVE-2019-8273
This section provides more technical insights into the vulnerability.
Vulnerability Description
A heap buffer overflow vulnerability in the VNC server code within the file transfer request handler of UltraVNC revision 1211.
Affected Systems and Versions
- Product: UltraVNC
- Vendor: Kaspersky Lab
- Version: 1.2.2.3
Exploitation Mechanism
The vulnerability can be exploited through network connectivity, allowing attackers to potentially execute malicious code.
Mitigation and Prevention
Protect your systems from CVE-2019-8273 with these mitigation strategies.
Immediate Steps to Take
- Update UltraVNC to revision 1212 to address the vulnerability.
- Monitor network traffic for any suspicious activity.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure timely patching and updates to all software components to prevent vulnerabilities like CVE-2019-8273.