TippingPoint Zero Day Initiative

Adobe Reader DC XSLT value-of Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-16-422: July 12th, 2016


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24597. For further product information on the TippingPoint IPS:

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 value-of 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.

Vendor Response

Adobe has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2016-04-28 - Vulnerability reported to vendor
    2016-07-12 - Coordinated public release of advisory


This vulnerability was discovered by:
    Wei Lei
    Sun Zhihao and Liu Yang of Nanyang Technological University