Advisory Details

July 14th, 2015

Microsoft Office Excel pivotField Heap Corruption Remote Code Execution Vulnerability

ZDI-15-326
ZDI-CAN-2896

CVE ID CVE-2015-2376
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Office Excel
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 19798. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to corrupt heap memory 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 processing of pivotField objects. A specially crafted spreadsheet can cause Excel to write information past the end of a heap-allocated buffer. An attacker may be able to leverage this vulnerability to execute arbitrary 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/en-us/library/security/MS15-070
DISCLOSURE TIMELINE
  • 2015-04-23 - Vulnerability reported to vendor
  • 2015-07-14 - Coordinated public release of advisory
CREDIT 3S Labs
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