Adobe Flash Player MP4 sequenceParameterSetNALUnit Remote Code Execution Vulnerability

2011-08-23T00:00:00
ID ZDI-11-276
Type zdi
Reporter Anonymous
Modified 2011-11-09T00:00:00

Description

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 flaw exists within the sequenceParameterSetNALUnit component. When handling the num_ref_frames_in_pic_order_cnt_cycle value the size is not validated and the process blindly copies user supplied data from offset_for_ref_frame into a fixed-length buffer on the stack. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the browser.