Description: This security update resolves two privately reported vulnerabilities in Microsoft Remote Desktop Connection. The vulnerabilities could allow remote code execution if an attacker successfully convinced a user of Terminal Services to connect to a malicious RDP server or if a user visits a specially crafted Web site that exploits this vulnerability. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses the vulnerabilities by changing the way the Remote Desktop Connection deals with unexpected parameters sent by the RDP server and by correctly validating parameters passed to the Remote Desktop Connection ActiveX control methods.

Update type: Critical

Release date: August 11, 2009

Applies to: All versions

Knowledge base: support.microsoft.com/kb/970927

Download link: 32-bit | 64-bit
Comments:Here are the specifics on the vulnerabilities covered by this update:

• Remote Desktop Connection Heap Overflow Vulnerability – CVE-2009-1133
• Remote Desktop Connection ActiveX Control Heap Overflow Vulnerability – CVE-2009-1929