Advisory Details

September 16th, 2016

Microsoft Office Excel Art Data Memory Corruption Remote Code Execution Vulnerability

ZDI-16-508
ZDI-CAN-3781

CVE ID CVE-2016-3365
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Office Excel
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24886. 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 Office Excel. 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 art data within a spreadsheet. The issue lies in the failure to properly validate user-supplied data which can result in a memory corruption condition. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.

VENDOR RESPONSE Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/library/security/MS16-107
DISCLOSURE TIMELINE
  • 2016-06-06 - Vulnerability reported to vendor
  • 2016-09-16 - Coordinated public release of advisory
CREDIT Steven Seeley of Source Incite
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