VERSION
Chrome Version: 57.0.2987.21 beta (64-bit), pepflashplayer 24.0.0.221
Operating System: Windows 7 en 64-bit

REPRODUCTION CASE

Open the poc in the attachment with chrome and observe the crash.
There is also a detailed write-up about the vulnerability in the attachment.


FOR CRASHES, PLEASE INCLUDE THE FOLLOWING ADDITIONAL INFORMATION
Type of crash: tab
Crash State: 

(d94.13e0): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.

pepflashplayer!PPP_ShutdownBroker+0x9893a5:
000007fe`dfcadba5 4c8b5608        mov     r10,qword ptr [rsi+8] ds:00000000`7ffff008=????????????????
7:091> k
Child-SP          RetAddr           Call Site
00000000`002fd5b0 000007fe`df53ff3b pepflashplayer!PPP_ShutdownBroker+0x9893a5
00000000`002fd5e0 000007fe`df70b138 pepflashplayer!PPP_ShutdownBroker+0x21b73b
00000000`002fd730 000007fe`df7101e4 pepflashplayer!PPP_ShutdownBroker+0x3e6938
00000000`002fd7a0 000007fe`df50da8a pepflashplayer!PPP_ShutdownBroker+0x3eb9e4
00000000`002fdf50 000007fe`df50eade pepflashplayer!PPP_ShutdownBroker+0x1e928a
00000000`002fdfb0 000007fe`df557339 pepflashplayer!PPP_ShutdownBroker+0x1ea2de
00000000`002fe270 000007fe`df5572e6 pepflashplayer!PPP_ShutdownBroker+0x232b39
00000000`002fe2a0 000007fe`df51d111 pepflashplayer!PPP_ShutdownBroker+0x232ae6
00000000`002fe2f0 000007fe`df33b75d pepflashplayer!PPP_ShutdownBroker+0x1f8911
00000000`002fe380 000007fe`df36127b pepflashplayer!PPP_ShutdownBroker+0x16f5d
00000000`002fe590 000007fe`df36118e pepflashplayer!PPP_ShutdownBroker+0x3ca7b
00000000`002fe5e0 000007fe`df36163c pepflashplayer!PPP_ShutdownBroker+0x3c98e
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for C:\Program Files (x86)\Google\Chrome\Application\57.0.2987.21\chrome_child.dll - 
00000000`002fe610 000007fe`d9372574 pepflashplayer!PPP_ShutdownBroker+0x3ce3c
00000000`002fe640 000007fe`d93b80d5 chrome_child!IsSandboxedProcess+0x216f4
00000000`002fe670 000007fe`d938cf8a chrome_child!IsSandboxedProcess+0x67255
00000000`002fe6e0 000007fe`d938cabc chrome_child!IsSandboxedProcess+0x3c10a
00000000`002fe710 000007fe`d938cc06 chrome_child!IsSandboxedProcess+0x3bc3c
00000000`002fe780 000007fe`d935df96 chrome_child!IsSandboxedProcess+0x3bd86
00000000`002fe8f0 000007fe`d7d123fe chrome_child!IsSandboxedProcess+0xd116
00000000`002fe920 000007fe`d7cc718c chrome_child!ovly_debug_event+0xc9fce



Credit:

Yuki Chen Of Qihoo 360 Vulcan Team