What is a buffer overrun?

Question

I downloaded AdAware-Alert, and ran a scan, and now I get this message, "A buffer overrun was detected which has corrupted the programs internal state. The program cannot safely continue execution and must now be terminated.
What is wrong here? Can it be fixed? How?
Thanks

Answer 1

Your download wasn't successfully. Delete or uninstall AdAware and try the download again. I downloaded it a few weeks ago and had the same problem. I corrected by deleting it and re-downloading.

Answer 2

hi
Buffer overflow
In computer security and programming, a buffer overflow, or buffer overrun, is a programming error which may result in a memory access exception and program termination, or in the event of the user being malicious, a breach of system security.A buffer overflow is an anomalous condition where a process attempts to store data beyond the boundaries of a fixed length buffer. The result is that the extra data overwrites adjacent memory locations. The overwritten data may include other buffers, variables and program flow data.Buffer overflows may cause a process to crash or produce incorrect results. They can be triggered by inputs specifically designed to execute malicious code or to make the program operate in an unintended way. As such, buffer overflows cause many software vulnerabilities and form the basis of many exploits. Sufficient bounds checking by either the programmer or the compiler can prevent buffer overflows.A buffer overflow occurs when data written to a buffer, due to insufficient bounds checking, corrupts data values in memory addresses adjacent to the allocated buffer. Most commonly this occurs when copying strings of characters from one buffer to another.Buffer overflows on the stack.Besides changing values of unrelated variables, buffer overflows can often be used (exploited) by attackers to cause a running program to execute arbitrary supplied code. The techniques available to an attacker to seek control over a process depend on the memory region where the buffer resides. For example the stack memory region, where data can be temporarily "pushed" onto the "top" of the stack, and later "popped" to read the value of the variable. Typically, when a function begins executing, temporary data items (local variables) are pushed, which remain accessible only during the execution of that function. Not only are there stack overflows, but also heap overflows.This is particularly serious because on most systems, the stack also holds the return address, that is, the location of the part of the program that was executing before the current function was called. When the function ends, the temporary storage is removed from the stack, and execution is transferred back to the return address. If, however, the return address has been overwritten by a buffer overflow, it will now point to some other location. In the case of an accidental buffer overflow as in the first example, this will almost certainly be an invalid location, not containing any program instructions, and the process will crash. However, a malicious attacker could tailor the return address to point to an arbitrary location such that it could compromise system security.

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Answer 3

A buffer overrun is a sign of poor programming skills... Think of it like filling empty one bushel boxes if you dump two bushels of dirt into one of the boxes it will overrun that box and fill the box next to it... Depending on what the next box was expecting to receive this could result in unexpected results... In correct programming the dirt would have been loaded into a temporary one bushel box and then carried to the correct box from there, that way any overflow would be away from the other empty boxes...
so buffer overruns occur when someone puts more data into a field than the field can hold so some of it spills over into the next field... hackers use this technique to put information into programs that normal edits would have caught if they tried to put it directly into the overflow fields....

Answer 4

once you're linked to the internet, there's a good possibly hood you have have been given an energetic hacker, attempting to get your device to drop respectable instructions (contained interior the buffer stack), and replace those together with his very own instructions. that's definitely certainly one of the main common vectors of hacking.