Advisory Details

June 11th, 2015

Microsoft Internet Explorer CListItemMarker Use-After-Free Remote Code Execution Vulnerability

CVE ID	CVE-2015-1622
CVSS SCORE	6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
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 ['19554']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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 or open a malicious file. The vulnerability relates to how Internet Explorer processes CSS-defined list item markers. By manipulating a document's elements an attacker can force a CGeneratedTreeNode object in memory to be reused after it has been freed. An attacker can leverage this vulnerability 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/MS15-018
DISCLOSURE TIMELINE	2015-02-24 - Vulnerability reported to vendor 2015-06-11 - Coordinated public release of advisory
CREDIT	AMol NAik

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