TippingPoint Zero Day Initiative

Adobe Acrobat Pro DC XObject stream Use-After-Free Remote Code Execution Vulnerability

ZDI-16-561: October 11th, 2016


CVSS Score

Affected Vendors

Affected Products

    Acrobat Pro DC

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 25005. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat Pro 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 handling of XObject streams. The issue lies in the failure to properly validate the existence of an object prior to performing operations on it. An attacker can leverage this vulnerability to execute 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

    2016-06-28 - Vulnerability reported to vendor
    2016-10-11 - Coordinated public release of advisory


This vulnerability was discovered by:
    Steven Seeley of Source Incite