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A software bug is a bug in computer software. A computer program with many or serious bugs may be described as buggy. The effects of a software bug range from minor (such as a misspelled word in the user interface) to severe (such as frequent crashing). Software bugs have been linked to disasters.
In engineering, debugging is the process of finding the root cause of and workarounds and possible fixes for bugs.. For software, debugging tactics can involve interactive debugging, control flow analysis, log file analysis, monitoring at the application or system level, memory dumps, and profiling.
Moreover, many software bugs which cause crashes are also exploitable for arbitrary code execution and other types of privilege escalation. [ 7 ] [ 8 ] For example, a stack buffer overflow can overwrite the return address of a subroutine with an invalid value, which will cause, e.g., a segmentation fault , when the subroutine returns.
For example, humans have faults but not bugs, and a server crash due to natural disaster is not a bug. In addition to or instead of defect , some use: error, flaw or fault . Engineered systems is a broad classification encompassing but not limited to: software , computer hardware , electronics , circuitry and machinery .
The first known incident of a bug found in a computer was when a moth ... There is no one single definition of “hacker.” ... is a type of bug that causes software to crash or behave in an ...
Patches for other software are typically distributed as data files containing the patch code. These are read by a patch utility program which performs the installation. This utility modifies the target program's executable file—the program's machine code—typically by overwriting its bytes with bytes representing the new patch code. If the ...
In computer programming jargon, a heisenbug is a software bug that seems to disappear or alter its behavior when one attempts to study it. [1] The term is a pun on the name of Werner Heisenberg, the physicist who first asserted the observer effect of quantum mechanics, which states that the act of observing a system inevitably alters its state.
In programming and software development, fuzzing or fuzz testing is an automated software testing technique that involves providing invalid, unexpected, or random data as inputs to a computer program. The program is then monitored for exceptions such as crashes, failing built-in code assertions, or potential memory leaks. Typically, fuzzers are ...