Adobe Flash (Multiple Scripts) – Use-After-Free When Rendering Displays (1)

• Exploit Database
• 15 阅读

• 作者： Google Security Research
  日期： 2016-01-11
• 类别：

  • dos
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/39220/

• Source: https://code.google.com/p/google-security-research/issues/detail?id=628
  
  There is a use-after-free that appears to be related to rendering the display based on multiple scripts. A PoC is attached, tested on Windows only. Note the PoC is somewhat unreliable on some browsers, sometimes it needs to render a minute or two in the foreground before crashing. This is related to unreliability in the freed object being reallocated as a value that causes the crash, not unreliability in the underlying bug (it crashes immediately in a debug build of Flash). With enough effort, an attacker could likely trigger the issue immediately.
  
  
  Proof of Concept:
  https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/39220.zip