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TITLE: RealVNC Multiple Connections Denial of Service Vulnerability
SECUNIA ADVISORY ID: SA13143
VERIFY ADVISORY: http://secunia.com/advisories/13143/
CRITICAL: Less critical
WHERE: >From remote
SOFTWARE: RealVNC 4.x http://secunia.com/product/3719/
DESCRIPTION: A vulnerability has been discovered in RealVNC, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the connection handling and can be exploited by establishing around 100 connections to port 5800/tcp or port 5900/tcp.
Successful exploitation prevents further connections from being established.
The vulnerability has been confirmed in version 4.0 for Windows. Other versions may also be affected.
SOLUTION: Restrict access to the services.
PROVIDED AND/OR DISCOVERED BY: Originally discovered by: Allan Zhang
Reported to also affect port 5800/tcp by: Dr_insane
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/
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