Advisory Details

November 19th, 2014

Microsoft Internet Explorer CPtsTextParaclient::GetApeCorners Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-14-377
ZDI-CAN-2474

CVE ID CVE-2014-6342
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 ['16559']. 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 CPtsTextParaclient::GetApeCorners. By manipulating a document's elements an attacker can force CPtsTextParaclient::GetApeCorners to index outside the bounds of an array. 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/en-us/library/security/ms14-065.aspx
DISCLOSURE TIMELINE
  • 2014-07-24 - Vulnerability reported to vendor
  • 2014-11-19 - Coordinated public release of advisory
CREDIT SkyLined
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