KLA10717 Multiple vulnerabilities in Microsoft Silverlight

Multiple serious vulnerabilities have been found in Microsoft Silverlight. Malicious users can exploit these vulnerabilities to execute arbitrary code or bypass security restrictions.

Below is a complete list of vulnerabilities

1. Improper requests handling can be exploited remotely via a specially designed Silverlight application to execute arbitrary code;
2. Improper memory handling can be exploited remotely via a specially designed Silverlight application to bypass security restrictions.

Original advisories

CVE-2015-6114

CVE-2015-6166

CVE-2015-6165

Related products

Microsoft-Silverlight

CVE list

CVE-2015-6114 warning

CVE-2015-6166 critical

CVE-2015-6165 warning

KB list

3106614

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

• Microsoft Silverlight 5