TippingPoint Zero Day Initiative

Microsoft Internet Explorer CShadow Direction Integer Overflow Remote Code Execution Vulnerability

ZDI-15-019: February 10th, 2015


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 16882. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the CShadow::put_Direction function. The issue lies in the failure to properly sanitize a user-supplied value. An attacker can leverage this vulnerability to execute code within the context of the current process.

Vendor Response

Microsoft has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2014-10-09 - Vulnerability reported to vendor
    2015-02-10 - Coordinated public release of advisory


This vulnerability was discovered by:
    Pawel Wylecial