Control Flow Graph Buffer Overflow

A control-flow graph CFG is a graph representation of all paths that might be traversed through a program during its execution. Control-flow integrity CFI refers to security policy dictating that program execution must follow a control-flow graph. StackGuard Automatic Adaptive Detection and Prevention of Buffer-Overflow Attacks 1998

Automatically detecting buffer overflow vulnerabilities is an important research topic in software security. Recent studies have shown that vulnerability detection performance utilizing deep learning-based techniques can be significantly enhanced. However, due to information loss during code representation, existing approaches cannot learn the features associated with vulnerabilities, leading

Stack buffer overflow vulnerability is a common software vulnerability that can overwrite function return addresses and hijack program control flow, causing serious system problems. The control flow graph of ret to libc is shown in Figure 5. Red addresses represent known program code addresses, and purple addresses represent random

In this paper, we propose a detection approach for buffer overflow vulnerability based on DCFG Data Control Flow Graph to detect three common vulnerabilities quotStrncpyquot, quotMemcpyquot and quotGetsquot. To start with, introduce the process of converting source code into corresponding data control flow graph.

Stack buffer overflow vulnerability is a common software vulnerability that can overwrite function return addresses and hijack program control flow, causing serious system problems.

In this paper, we propose a novel buffer overflow detection approach by performing the progressive data-flow evaluation on programs with their super data-flow graphs, which are expected to cover all real data-flow paths. For this purpose, we realized the super data-flow graph generation based on classic reaching-definition analysis, as well as

BovdGFE constructs the buffer overflow function samples. Then, we present a new representation structure, code representation sequence CoRS, which incorporates the control flow, data dependencies, and syntax structure of the vulnerable code for reducing information loss during code representation.

Control flow graph CFG CFG is an abstract representation of the process or program data structure that describes the order of execution of code statements and the state of a certain place on the execution path 47. Due to the inheritance and invocation features of the program itself, it is important to analyze the buffer overflow type of

flaws to get control over the program's flow. Once control over program is achieved, it is easy to change program's flow to a particular address where malicious code is stored. Buffer overflow is an example of such attack where return address of a procedure is overwritten and program flow is switched to an

execution must follow the path of a previously determined control flow graph CFG. Static CFG Dynamic Path attacker code! Buffer overflow fake vtables Exploit use-after-free bugs Heap spraying feng shui Heap-Metadata Canaries Address-Space Layout Randomization