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Microsoft Internet Explorer 11 MSHTML CView::CalculateImageImmunity Use-After-Free
Posted Nov 2, 2016
Authored by SkyLined

Setting the listStyleImage property of an Element object causes MSIE 11 to allocate 0x4C bytes for an "image context" structure, which contains a reference to the document object as well as a reference to the same CMarkup object as the document. When the element is removed from the document/document fragment, this image context is freed on the next "draw". However, the code continues to use the freed context almost immediately after it is freed.

tags | exploit
SHA-256 | 7c3474c2032d42f936d3ff0e59c7c8ce6f77233bc469225fdf7ba7bf031ca859

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