KLA10806
Multiple vulnerabilities in Microsoft Internet Explorer and Edge

Multiple serious vulnerabilities have been found in Microsoft Internet Explorer and Edge. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions or obtain sensitive information.

Below is a complete list of vulnerabilities

1. An improper memory objects handling at JScript and VBScript engines can be exploited remotely via a specially designed content to execute arbitrary code;
2. An improper code integrity validation at Device Guard can be exploited via a specially designed code to bypass security restrictions;
3. An improper memory objects handling can be exploited remotely via a specially designed content to execute arbitrary code;
4. An improper access permissions handling can be exploited remotelyvia a specially designed content to obtain sensitive information.

Technical details

Vulnerability (2) related to User Mode Code Integrity component of Device Guard which allows running unsigned malicious code as though it were signed by a trusted source.

To mitigate vulnerability (3) user can restrict access to the VBScript and JScript engines. For further instructions take a look at MS16-051 listed in original advisories section.

Microsoft Internet Explorer versions 9 through 11
Microsoft Edge

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

CVE-2016-0189
CVE-2016-0187
CVE-2016-0194
CVE-2016-0193
CVE-2016-0192
CVE-2016-0191
CVE-2016-0188
CVE-2016-0186

3156421
3156387
3154070