Advisory Details

December 18th, 2015

Microsoft Internet Explorer RtfToForeign32 Out-Of-Bounds Indexing Remote Code Execution Vulnerability

ZDI-14-430
ZDI-CAN-2811

CVE ID CVE-2014-6374
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['19676']. 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 Internet Explorer. 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 arguments passed to the RtfToForeign32 function. By manipulating a document's elements an attacker can access data outside the bounds of an allocated buffer. An attacker can leverage this vulnerability to execute 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/library/security/ms14-080
DISCLOSURE TIMELINE
  • 2015-03-27 - Vulnerability reported to vendor
  • 2015-12-18 - Coordinated public release of advisory
CREDIT 3S Labs
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