There cannot be any NULL bytes in the address if it is in the format string (except as the terminating byte) since the string is a NULL-terminated array just like any other in C. This does not mean that addresses containing NULL bytes can never be used—addresses can often be placed in the stack in places other than the format string itself. In these cases, it may be possible for attackers to write to addresses containing NULL bytes. It is also possible to do a two-stage memory read or write—first construct an address with NULL bytes in it on the stack (see the following section “Writing to Memory”) and then use it as a pointer for %s for reading

There cannot be any NULL bytes in the address if it is in the format string (except as the terminating byte) since the string is a NULL-terminated array just like any other in C. This does not mean that addresses containing NULL bytes can never be used—addresses can often be placed in the stack in places other than the format string itself. In these cases, it may be possible for attackers to write to addresses containing NULL bytes. It is also possible to do a two-stage memory read or write—first construct an address with NULL bytes in it on the stack (see the following section “Writing to Memory”) and then use it as a pointer for %s for reading

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter3: Data Representation

Section: Chapter Questions

Problem 13RQ: How is an array stored in main memory? How is a linked list stored in main memory? What are their...

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OCaml Code: I need help with writing the push and pop statements in order to create an interpreter for OCaml. I need help with writing the print statement as well. The println command pops a string off the top of the stack and writes it, followed by a newline, to the output file that is specified as the second argument to the interpreter function. In the case that the top element on the stack is not a string, it should be returned to the stack and an :error: pushed. If the stack is empty, an :error: shall be pushed. Below is the unfinished code. Make sure to use the test cases as well and show the screenshots of the code passing the test cases. Attached is info. for push and pop. interpreter.ml type stackValue = BOOL of bool | INT of int | ERROR | STRING of string | NAME of string | UNIT type command = ADD | SUB | MUL | DIV | PUSH of stackValue | POP of stackValue | REM | NEG | TOSTRING | SWAP | PRINTLN | QUIT let interpreter (input, output) = let ic = open_in input in…
The return address of a function can be displayed via a series of commands. Keep in mind that any changes you make to the stack must not impede the return of the procedure to its caller
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It is possible to show the return address of a function by executing a set of instructions in sequence. Be mindful that any changes you make to the stack must not hinder the procedure's ability to restore control to the entity that called it.
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How is an array stored in main memory? How is a linked list stored in main memory? What are their comparative advantages and disadvantages? Give examples of data that would be best stored as an array and as a linked list.
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A set of instructions may be used to show a function's return address. Remember that any modifications you make to the stack cannot prevent the procedure from returning to its caller.