TippingPoint Zero Day Initiative

Microsoft Internet Explorer Table Column Deletion Memory Corruption Vulnerability

ZDI-07-027: May 8th, 2007


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5236. 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.

The specific flaw exists in the CTableCol::OnPropertyChange() method. When a named table row in HTML contains a named table column, then calls the deleteCell() JavaScript method, any property of the table column, existing or not, accessed after the deletion takes place will trigger an exploitable memory corruption.

Vendor Response

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

Disclosure Timeline

    2006-10-03 - Vulnerability reported to vendor
    2007-05-08 - Coordinated public release of advisory


This vulnerability was discovered by: