Advisory Details

July 12th, 2016

Adobe Flash PrintJob printAsBitmap Use-After-Free Remote Code Execution Vulnerability

ZDI-16-425
ZDI-CAN-3780

CVE ID CVE-2016-4222
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Flash
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 24790. 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 Flash. 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 PrintJob objects. By setting the printAsBitmap property with a specific value, an attacker can cause a pointer to be reused after it has been freed. 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:
https://helpx.adobe.com/security/products/flash-player/apsb16-25.html
DISCLOSURE TIMELINE
  • 2016-05-26 - Vulnerability reported to vendor
  • 2016-07-12 - Coordinated public release of advisory
CREDIT Jaehun Jeong(@n3sk) of WINS
WSEC Analysis Team
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