Adobe Flash AdTimelineItem Type Confusion Remote Code Execution Vulnerability

July 12th, 2016
ZDI-16-424 ZDI-CAN-3818

CVE ID

CVE-2016-4223

CVSS Score

6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected Vendors

Adobe

Affected Products

Flash

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 AdTimelineItem objects. By performing actions in ActionScript an attacker can trigger a type confusion condition. 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/apsb16-25.html

Disclosure Timeline

  • 2016-06-06 - Vulnerability reported to vendor
  • 2016-07-12 - Coordinated public release of advisory

Credit

Garandou Sara

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