Advisory Details

October 8th, 2013

Microsoft Windows TTF CMAP Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2013-3894
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows 7
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code 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 TTF fonts. The issue lies in the handling of the CMAP table. An attacker can leverage this situation to raise privileges and execute code under 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/en-us/security/bulletin/ms13-081
DISCLOSURE TIMELINE	2013-06-10 - Vulnerability reported to vendor 2013-10-08 - Coordinated public release of advisory
CREDIT	ZombiE

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