Advisory Details

May 24th, 2016

Microsoft Edge JavaScript unshift Method Uninitialized Memory Remote Code Execution Vulnerability

CVE ID	CVE-2016-0186
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Edge
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code 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 specific flaw exists within the implementation of the JavaScript Array.unshift method. By performing certain operations in script, an attacker can cause JavaScript to read uninitialized data from a memory location on the stack. An attacker can leverage this 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/en-us/library/security/mt674627.aspx
DISCLOSURE TIMELINE	2016-04-01 - Vulnerability reported to vendor 2016-05-24 - Coordinated public release of advisory
CREDIT	Simon Zuckerbraun - Trend Micro Zero Day Initiative

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