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Analysis and Check of Type Conversion and Control Flow Safety Vulnerability

Author: ZhaoWenJie
Tutor: LiuJian
School: Xi'an University of Electronic Science and Technology
Course: Computer Software and Theory
Keywords: Software Safety Static Check Type Conversion Abstract Syntax Tree
CLC: TP309
Type: Master's thesis
Year: 2006
Downloads: 113
Quote: 1
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High efficiency and flexibility are the aims of the developers of C/C++ language. But some safeties are neglected more or less. Because of the programmer’s inability or carelessness, the safety of the software is extremely threatened. Type conversion and control flow safety vulnerabilities in C/C++ are studied in this paper. Feasible static detecting methods are given based on deep analysis of these safety vulnerabilities.For type conversion safety vulnerabilities, its commonness is summarized through the analysis of data type characteristic and the conversion of them. Syntax directed translation technique is used to describe the type conversion safety vulnerabilities formally. Finally, these vulnerabilities are detected with the use of foreign free software GASTA and the handle of the AST (Abstract Syntax Tree). The control flow relative safety vulnerabilities are handled similarly.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality
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