Advisory Details

November 8th, 2016

Adobe Flash AS2 extends Use-After-Free Remote Code Execution Vulnerability

ZDI-16-602
ZDI-CAN-4040

CVE ID CVE-2016-7859
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 25448. 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 AS2's extends operator. The issue results from the lack of validating the existence of an object prior to performing operations on the object. 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/flash-player/apsb16-37.html
DISCLOSURE TIMELINE
  • 2016-10-06 - Vulnerability reported to vendor
  • 2016-11-08 - Coordinated public release of advisory
CREDIT Archer
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