CVE-2019-8276 Explained : Impact and Mitigation

A vulnerability was detected in the VNC server code of UltraVNC revision 1211, leading to a Denial of Service (DoS) situation. The exploit is likely to be carried out through network connections. This flaw has been rectified in the subsequent revision, 1212.

Understanding CVE-2019-8276

This CVE involves a stack-based buffer overflow vulnerability in UltraVNC revision 1211, affecting the file transfer request handler.

What is CVE-2019-8276?

The vulnerability in UltraVNC revision 1211's VNC server code could result in a Denial of Service (DoS) scenario, exploitable through network connections.

The Impact of CVE-2019-8276

The vulnerability could lead to a Denial of Service (DoS) situation.
Exploitation is likely to occur through network connections.

Technical Details of CVE-2019-8276

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability is a stack-based buffer overflow in the VNC server code of UltraVNC revision 1211, specifically within the file transfer request handler.

Affected Systems and Versions

Product: UltraVNC
Vendor: Kaspersky Lab
Version: 1.2.2.3

Exploitation Mechanism

The exploit is likely to be carried out through network connections.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Update UltraVNC to revision 1212 or a version that includes the fix.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply patches and updates provided by UltraVNC to address the vulnerability.