Advisory Details

March 8th, 2016

Microsoft Internet Explorer CDataset RemoveItem Use-After-Free Information Disclosure Vulnerability

ZDI-16-180
ZDI-CAN-3455

CVE ID CVE-2016-0106
CVSS SCORE 4.3, (AV:N/AC:M/Au:N/C:P/I:N/A:N)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 22288. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to disclose the contents of memory 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 vulnerability relates to how Internet Explorer handles custom data attributes attached to HTML elements. By manipulating a document's elements an attacker can force a string in memory to be reused after it has been freed, leading to a disclosure of memory contents. An attacker can use this information in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/library/security/MS16-023
DISCLOSURE TIMELINE
  • 2015-12-07 - Vulnerability reported to vendor
  • 2016-03-08 - Coordinated public release of advisory
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