Adobe Flash PSDK Use-After-Free Remote Code Execution Vulnerability

December 13th, 2016
ZDI-16-620 ZDI-CAN-4123

CVE ID

CVE-2016-7878

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 PSDK objects. The process does not properly validate 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 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/apsb16-39.html

Disclosure Timeline

  • 2016-11-03 - Vulnerability reported to vendor
  • 2016-12-13 - Coordinated public release of advisory

Credit

bo13oy of CloverSec Labs

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