(Pwn2Own) Adobe Flash Player NetStream addBytes Remote Code Execution Vulnerability

April 9th, 2012
ZDI-12-057 ZDI-CAN-1548

CVE ID

CVSS Score

9.0 AV:N/AC:L/Au:N/C:P/I:P/A:C

Affected Vendors

Adobe

Affected Products

Flash Player

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 way Flash Player handles the update of a NetStream object via the appendBytes method which can lead to a use-after-free condition when the function returns. This can result in remote code execution under the context of the current process.

Additional Details


http://www.adobe.com/support/security/bulletins/apsb12-07.html


Disclosure Timeline

  • 2012-03-12 - Vulnerability reported to vendor
  • 2012-04-09 - Coordinated public release of advisory

Credit

VUPEN Vulnerability Research Team http://www.vupen.com

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