Microsoft Internet Explorer CTreeNode Use-After-Free Remote Code Execution VulnerabilityZDI-13-172: July 26th, 2013
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 13042. For further product information on the TippingPoint IPS:
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 specific manipulations of styles to allow for a CElement to dispose of a CTreeNode. While unwinding the stack, CElement::ComputeFormats can use the freed memory resulting in a use-after-free condition. An attacker can leverage this situation to execute code under the context of the user running the browser.
Vendor ResponseMicrosoft has issued an update to correct this vulnerability. More details can be found at:
2013-03-29 - Vulnerability reported to vendor
2013-07-26 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: