Advisory Details

August 9th, 2016

Microsoft Edge GetRefererUrl Use-After-Free Information Disclosure Vulnerability

CVE ID	CVE-2016-3326
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Edge
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['24738']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Edge. 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 Microsoft Edge constructs Referer headers in HTTP requests. By manipulating a document's elements an attacker can force a string in memory to be reused after it has been freed. As a result, unintended information will be included in the Referer header. An attacker can leverage this in conjunction with other vulnerabilities to execute code under 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/MS16-095
DISCLOSURE TIMELINE	2016-05-05 - Vulnerability reported to vendor 2016-08-09 - Coordinated public release of advisory
CREDIT	Simon Zuckerbraun - Trend Micro Zero Day Initiative

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