Microsoft Edge: Chakra: JIT: CallRegExSymbolFunction doesn't check the return type

The "CallRegExSymbolFunction" method is used to call symbol functions in regexp objects. But it doesn't check the return value's type. Since the user can define the symbol functions, it can break the JIT compiler's type assumptions. Tested Microsoft Edge 41.16299.15.0 with Experimental JavaScript...

Microsoft Edge Chakra JIT CallRegExSymbolFunction Return Check Fail Exploit

Exploit for windows platform in category dos / poc Microsoft Edge: Chakra: JIT: CallRegExSymbolFunction doesn't check the return type The "CallRegExSymbolFunction" method is used to call symbol functions in regexp objects. But it doesn't check the return value's type. Since the user can define th...

Microsoft Edge Chakra JIT CallRegExSymbolFunction Return Check Fail

Microsoft Edge: Chakra: JIT: CallRegExSymbolFunction doesn't check the return type The "CallRegExSymbolFunction" method is used to call symbol functions in regexp objects. But it doesn't check the return value's type. Since the user can define the symbol functions, it can break the JIT compiler's...