├── Microsoft Edge MemGC Internals.pptx
└── README.md


/Microsoft Edge MemGC Internals.pptx:
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https://raw.githubusercontent.com/zenhumany/hitcon2015/c47e911a345af892295f906c62d2af0c3c5a8ef0/Microsoft Edge MemGC Internals.pptx


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/README.md:
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 1 | In 2014, Microsoft introduced two new exploit mitigations, called Isolated Heap and MemoryProtection.
 2 | These mitigations greatly increases the difficulty of use-after-free(UAF) vulnerability exploit,
 3 | but there are still many ways to bypass the mitigations when the pointer to the freed block didn’t remains on the stack.
 4 | 
 5 | In order to completely prevent UAF vulnerabilities exploit，
 6 | Microsoft Edge browser introduced a new memory management called MemGC. 
 7 | MemGC Use the mark and sweep algorithm for memory management.
 8 | 
 9 | In this presentation, the first part will sketch the MemGC Internals by discussing about its data structure, 
10 | its memory allocate, free, mark and sweep. The second part will discuss Why MemGC can effectively prevent the UAF'S exploit. 
11 | The third part will discuss some weaknesses of MemGC.
12 | 


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