stack based buffer overrun

BackgroundIn the database system, many security vulnerabilities have been found, which are more serious and more harmful: buffer overflow and SQL injection 2 kinds.SQL injection relies heavily on structured query languages, each with a slightly

Buffer Overrun Definition Buffer isProgramThe continuous memory area used to store data. Once the allocation is completed, the starting address and urine are fixed. When the program is running, if the buffer area is exceeded, buffer overflow or

What are heaps and stacks, and where are they?Original link: http://www.kuqin.com/shuoit/20140815/341692.htmlProblem descriptionThe programming language books often explain that value types are created on the stack, and reference types are created

Unlike sending network packets, network packets are asynchronous, because you are not sure who will send you a network packet suddenly, so this network packet logic actually contains two things: 1. Notification after the arrival of the packet2.

Unlike sending network packets, network packets are asynchronous. Because you are not sure who will suddenly send you a network package. So this network packet logic actually consists of two things: 1. Notification after the arrival of the packet2.

Study the principle of buffer overflow, at least for the difference of two kinds of databaseBuffer overflow principleA buffer overflow is the amount of data that a computer program fills into a buffer that exceeds the capacity of the buffer itself.

Protect your code with Visual C + + defense features Michael Howard   directory based on stack buffer overflow detection (/GS) Security exception Handling (/SAFESEH) DEP compatibility (/NXCOMPAT) image randomization (/dynamic Base) A more secure

Problem descriptionThe programming language books often explain that value types are created on the stack, and reference types are created on the heap, but do not essentially explain what this heap and stack are. I have only advanced language

The stack is the amount of memory space that is left for the execution thread . When the function is called, the top of the stack is a local variable and some bookkeeping data reserve blocks. When the function is finished, the block is useless and

Linux kernel debugging methods KDB: Only in the assembly code level for debugging; The advantage is that two machines are not required for debugging. GDB: When debugging a module, it lacks some vital features that can be used to view the operation