Abstract
Automatic vulnerabilities prediction assists developers and minimizes resources allocated to fix software security issues. These costs can be minimized even more if the exact location of vulnerability is correctly indicated. In this study, the authors propose a new approach to using code metrics in vulnerability detection. The strength part of the proposed approach lies in using code metrics not to simply quantify characteristics of software components at a coarse granularity (package, file, class, function) such as complexity, coupling, etc., which is the approach commonly used in previous studies, but to quantify extracted pieces of code that hint presence of vulnerabilities at a fine granularity (few lines of code). Obtained results show that code metrics can be used with a machine learning technique not only to indicate vulnerable components wish was the aim of previous approaches but also to detect and locate vulnerabilities with very good accuracy.