Exploring code weaknesses in StackOverflow


Whether we like it or not, software designers, programmers and architects use StackOverflow. Mostly because they want to be part of a community – help others and help themselves.

However, StackOverflow has become a de-facto go-to place to find programming answers. Oftentimes, these answers include usage of libraries or other solutions. These libraries solve the immediate problems, but they can also introduce vulnerabilities that the programmers are not aware of.

In this article, the authors review how C/C++ authors introduce and revise vulnerabilities in their code. From the introduction: “We scan 646,716 C/C++ code snippets from Stack Overflow answers. We observe that code weaknesses are detected in 2% of the C/C++ answers with code snippets; more specifically, there are 12,998 detected code weaknesses that fall into 36% (i.e., 32 out of 89) of all the existing C/C++ CWE types.

I like that the paper presents a number of good examples, which can be used for training of software engineers. Both at the university level and later during their work. Some of them can even be used to create coding guidelines for companies – including good and bad examples.

The paper has a lot of great findings about the way in which weaknesses and vulnerabilities are introduced, for example ” 92.6% (i.e., 10,884) of the 11,748 Codew has weaknesses introduced when their code snippets were initially created on Stack Overflow, and 69% (i.e., 8,103 out of 11,748) of the Codew has never been revised

I strongly recommend to read the paper and give it to your software engineers to scan….