TippingPoint Zero Day Initiative

(Pwn2Own) Adobe Flash Player AS3 ConvolutionFilter Use-After-Free Remote Code Execution Vulnerability

ZDI-15-134: April 15th, 2015


CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Flash Player. 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 processing of AS3 ConvolutionFilter objects. By manipulating the matrix property of a ConvolutionFilter object, an attacker can force a dangling 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:

Disclosure Timeline

    2015-03-18 - Vulnerability reported to vendor
    2015-04-15 - Coordinated public release of advisory


This vulnerability was discovered by:
    Nicolas Joly