CVE-2019-8267 : Vulnerability Insights and Analysis
Discover the impact of CVE-2019-8267, an out-of-bounds read vulnerability in UltraVNC by Kaspersky Lab. Learn about affected systems, exploitation risks, and mitigation steps.
A security flaw has been discovered in UltraVNC revision 1207, affecting the VNC client code within the TextChat module. This vulnerability allows for an out-of-bounds read, leading to the possibility of a denial of service (DoS) situation. The issue has been resolved in the latest version, revision 1208.
Understanding CVE-2019-8267
This CVE-2019-8267 vulnerability affects UltraVNC, specifically version 1.2.2.3, developed by Kaspersky Lab.
What is CVE-2019-8267?
The CVE-2019-8267 vulnerability in UltraVNC revision 1207 allows for an out-of-bounds read in the VNC client code within the TextChat module, potentially resulting in a denial of service (DoS) scenario. The exploit can be triggered through network connectivity.
The Impact of CVE-2019-8267
The vulnerability could lead to a denial of service (DoS) situation, impacting the availability and functionality of the affected systems.
Technical Details of CVE-2019-8267
This section provides more technical insights into the CVE-2019-8267 vulnerability.
Vulnerability Description
The vulnerability in UltraVNC revision 1207 allows for an out-of-bounds read in the VNC client code within the TextChat module, potentially leading to a denial of service (DoS) condition.
Affected Systems and Versions
- Product: UltraVNC
- Vendor: Kaspersky Lab
- Version: 1.2.2.3
Exploitation Mechanism
The vulnerability can be exploited through network connectivity, potentially allowing malicious actors to trigger the out-of-bounds read and cause a denial of service (DoS) situation.
Mitigation and Prevention
To address CVE-2019-8267, follow these mitigation and prevention strategies:
Immediate Steps to Take
- Update UltraVNC to the latest version, revision 1208, where the vulnerability has been fixed.
- Monitor network traffic for any suspicious activity that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update software and systems to patch known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.