CVE-2019-8268 : Security Advisory and Response

UltraVNC revision 1206 has off-by-one vulnerabilities in the VNC client code, potentially leading to code execution. Learn about the impact, affected systems, and mitigation steps.

Understanding CVE-2019-8268

What is CVE-2019-8268?

The VNC client code in UltraVNC revision 1206 has off-by-one vulnerabilities due to incorrect usage of the ClientConnection::ReadString function, allowing potential code execution through network connectivity. These vulnerabilities have been addressed in revision 1207.

The Impact of CVE-2019-8268

The vulnerabilities in UltraVNC revision 1206 could be exploited by attackers to execute arbitrary code, posing a significant security risk to affected systems.

Technical Details of CVE-2019-8268

Vulnerability Description

Off-by-one vulnerabilities in UltraVNC revision 1206 due to improper usage of the ClientConnection::ReadString function
Potential for code execution through network connectivity

Affected Systems and Versions

Product: UltraVNC
Vendor: Kaspersky Lab
Version: 1.2.2.3

Exploitation Mechanism

Attack vector: Network connectivity
Vulnerabilities resolved in UltraVNC revision 1207

Mitigation and Prevention

Immediate Steps to Take

Update UltraVNC to revision 1207 to mitigate the vulnerabilities
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update software and apply security patches
Conduct security assessments and penetration testing to identify and address vulnerabilities

Patching and Updates

Stay informed about security advisories and updates from UltraVNC and Kaspersky Lab