A Case Study on Software Vulnerability Coordination
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|Julkaisu||Information and Software Technology|
|Varhainen verkossa julkaisun päivämäärä||19 kesäkuuta 2018|
|DOI - pysyväislinkit|
|Tila||Julkaistu - marraskuuta 2018|
Objective: The paper observes the historical time delays between the assignment of CVEs on a mailing list and the later appearance of these in the National Vulnerability Database (NVD). Drawing from research on software engineering coordination, software vulnerabilities, and bug tracking, the delays are modeled through three dimensions: social networks and communication practices, tracking infrastructures, and the technical characteristics of the CVEs coordinated.
Method: Given a period between 2008 and 2016, a sample of over five thousand CVEs is used to model the delays with nearly fifty explanatory metrics. Regression analysis is used for the modeling.
Results: The results show that the CVE coordination delays are affected by different abstractions for noise and prerequisite constraints. These abstractions convey effects from the social network and infrastructure dimensions. Particularly strong effect sizes are observed for annual and monthly control metrics, a control metric for weekends, the degrees of the nodes in the CVE coordination networks, and the number of references given in NVD for the CVEs archived. Smaller but visible effects are present for metrics measuring the entropy of the emails exchanged, traces to bug tracking systems, and other related aspects. The empirical signals are weaker for the technical characteristics.
Conclusion: Software vulnerability and CVE coordination exhibit all typical traits of software engineering coordination in general. The coordination perspective elaborated and the case studied open new avenues for further empirical inquiries as well as practical improvements for the contemporary CVE coordination.