Advisory Details

October 11th, 2016

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

ZDI-16-561
ZDI-CAN-3816

CVE ID CVE-2016-6971
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Pro DC
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 25005. 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 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.

ADDITIONAL DETAILS Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb16-33.html
DISCLOSURE TIMELINE
  • 2016-06-28 - Vulnerability reported to vendor
  • 2016-10-11 - Coordinated public release of advisory
CREDIT Steven Seeley of Source Incite
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