Advisory Details

July 13th, 2018

Microsoft Internet Explorer EMF Graphic Out-Of-Bounds Read Information Disclosure Vulnerability

CVE ID	CVE-2018-8239
CVSS SCORE	4.3, AV:N/AC:M/Au:N/C:P/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Internet Explorer
VULNERABILITY DETAILS	This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft Windows. 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 processing of EMF graphics. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute 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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8239
DISCLOSURE TIMELINE	2018-05-22 - Vulnerability reported to vendor 2018-07-13 - Coordinated public release of advisory 2018-07-13 - Advisory Updated
CREDIT	willJ of Tencent PC Manager

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