Deep Learning-Based Hybrid Fuzz Testing
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National Natural Science Foundation of China (62032010); Postgraduate Research & Practice Innovation Program of Jiangsu Province

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    Abstract:

    With the rapid development of software techniques, domain-driven software raises new challenges in software security and robustness. Symbolic execution and fuzzing have been rapidly developed in recent decades, demonstrating their ability in detecting software bugs. Enormous detected and fixed bugs prove the feasibility of the two methods. However, it is still a challenging task to combine the two methods due to their respective weaknesses. State-of-the-art techniques focus on incorporating the two methods such as using symbolic execution to solve paths when fuzzing gets stuck in complex paths. Unfortunately, such methods are inefficient because they have to switch to fuzzing (resp. symbolic execution) when performing symbolic execution (resp. fuzzing). This paper presents a novel deep learning-based hybrid testing method using symbolic execution and fuzzing. The method tries to predict paths that are suitable for fuzzing (resp. symbolic execution) and use the fuzzing (resp. symbolic execution) to reach the paths. To further enhance effectiveness, this paper also proposes a hybrid mechanism to make them interact with each other. The proposed approach is evaluated on the programs in LAVA-M, and the results are compared with those in the case of using symbolic execution or fuzzing independently. It achieves more than 20\% increase in branch coverage and 1 to 13 times increase in the path number and uncovers 929 more bugs.

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Fengjuan Gao, Yu Wang, Lingyun Situ, Linzhang Wang. Deep Learning-Based Hybrid Fuzz Testing. International Journal of Software and Informatics, 2021,11(3):335~355

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  • Received:
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  • Online: September 26,2021
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