UltraVNC VNCViewer Multiple Buffer Overflow Vulnerabilities - Nov08

Summary
This host is installed with UltraVNC VNCViewer and is prone to Buffer Overflow Vulnerability.
Impact
Successful exploitation allows attackers to execute arbitrary code by tricking a user into connecting to a malicious VNC server or by sending specially crafted data to a vncviewer in LISTENING mode and can even cause denial of service condition. Impact Level: Application
Solution
Upgrade to latest Version or Apply the available patch from below link, http://downloads.sourceforge.net/ultravnc/UltraVNC-Viewer-104-Security-Update-2---Feb-8-2008.zip
Insight
The flaw is due to multiple boundary errors within the vncviewer/FileTransfer.cpp file, while processing malformed data.
Affected
UltraVNC VNCViewer Version 1.0.2 and 1.0.4 before RC11 on Windows (Any).
References