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“Call graph soundness in Android static analysis” by Jordan Samhi, Rene Just, Tegawendé F. Bissyandé, Michael D. Ernst, and Jacques Klein. In ISSTA 2024, Proceedings of the 2024 International Symposium on Software Testing and Analysis, (Vienna, Austria), Sep. 2024.
Static analysis is sound in theory, but an implementation may unsoundly fail to analyze all of a program's code. Any such omission is a serious threat to the validity of the tool's output. Our work is the first to measure the prevalence of these omissions. Previously, researchers and analysts did not know what is missed by static analysis, what sort of code is missed, or the reasons behind these omissions. To address this gap, we ran 13 static analysis tools and a dynamic analysis on 1000 Android apps. Any method in the dynamic analysis but not in a static analysis is an unsoundness.
Our findings include the following. (1) Apps built around external frameworks challenge static analyzers. On average, the 13 static analysis tools failed to capture 61% of the dynamically-executed methods. (2) A high level of precision in call graph construction is a synonym for a high level of unsoundness.; (3) No existing approach significantly improves static analysis soundness. This includes those specifically tailored for a given mechanism, such as DroidRA to address reflection. It also includes systematic approaches, such as EdgeMiner, capturing all callbacks in the Android framework systematically. (4) Modeling entry point methods challenges call graph construction which jeopardizes soundness.
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BibTeX entry:
@inproceedings{SamhiJBEK2024,
author = {Jordan Samhi and Rene Just and Tegawend{\'e} F. Bissyand{\'e}
and Michael D. Ernst and Jacques Klein},
title = {Call graph soundness in Android static analysis},
booktitle = {ISSTA 2024, Proceedings of the 2024 International
Symposium on Software Testing and Analysis},
address = {Vienna, Austria},
month = sep,
year = {2024}
}
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