Advisory Details

September 16th, 2016

Microsoft Windows NtGdiQueryFonts Information Disclosure Vulnerability

CVE ID	CVE-2016-3354
CVSS SCORE	4.9, AV:L/AC:L/Au:N/C:C/I:N/A:N
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows
VULNERABILITY DETAILS	This vulnerability allows local attackers to leak 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 handling of the NtGdiQueryFonts function. The issue lies in the failure to sanitize a buffer before returning its contents resulting in the leak of a kernel address. An attacker can leverage this vulnerability to leak sensitive information in the context of SYSTEM.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/library/security/MS16-106
DISCLOSURE TIMELINE	2016-05-05 - Vulnerability reported to vendor 2016-09-16 - Coordinated public release of advisory
CREDIT	WanderingGlitch - Trend Micro Zero Day Initiative

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