Advisory Details

January 12th, 2016

Adobe Reader Graphics State Parameter Dictionary Double Free Remote Code Execution Vulnerability

ZDI-16-017
ZDI-CAN-3273

CVE ID CVE-2016-0935
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Reader
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 21932. 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. 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 the ExtGState dictionary within PDFs. The issue lies in the processing of malformed dictionaries leading to a double free. An attacker could 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/apsb16-02.html
DISCLOSURE TIMELINE
  • 2015-09-03 - Vulnerability reported to vendor
  • 2016-01-12 - Coordinated public release of advisory
CREDIT kdot
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