Advisory Details

July 12th, 2016

Adobe Reader DC for-each XSLT Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-16-417
ZDI-CAN-3738

CVE ID CVE-2016-4199
CVSS SCORE 6.8, AV:N/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Reader DC
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['24730']. 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 Adobe Reader DC. 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 XPath expressions. A PDF document with a specific "for-each" element and an XPath expression can force Adobe Reader DC to write values past the end of an allocated object. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.

ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb16-26.html
DISCLOSURE TIMELINE
  • 2016-04-28 - Vulnerability reported to vendor
  • 2016-07-12 - Coordinated public release of advisory
CREDIT AbdulAziz Hariri - Trend Micro Zero Day Initiative
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