Introduction
In cybersecurity, CVEs (Common Vulnerabilities and Exposures) are the universal references for identifying security vulnerabilities. Yet, each CVE comes with a cost, not only for the organization reporting it but also for all the security teams that must react. It is within this context that the curl project, responsible for the widely used open-source software 'libcurl', finds itself at the center of a dispute over CVE allocation.
Being a CNA: Power and Responsibility
Since becoming a CNA (CVE Numbering Authority), the curl project has published 57 CVEs. This means that as an authority, it can decide whether a vulnerability deserves a CVE. This autonomy allows for quick and frictionless vulnerability management, but it also carries significant responsibility.
The Importance of Judgment
For each vulnerability report, the curl team assesses whether the issue is indeed a security flaw. The classification is then made into 'LOW', 'MEDIUM', 'HIGH', or 'CRITICAL'. However, some issues are deemed 'lower than LOW', where the risks are so low that they do not justify a CVE.
When Does a CVE Become a Dispute?
A dispute arises when the relevance of a CVE is contested. Why? Because each published CVE mobilizes security teams worldwide to apply patches, potentially affecting billions of software instances, as is the case with libcurl.
The Cost of a CVE
According to estimates, libcurl is installed on about thirty billion instances globally. Thus, each published CVE can trigger a cascade of software updates. A process that, while crucial for security, generates a significant operational cost.
A Delicate Balance
The stakes are high: not to unnecessarily alert on theoretical issues while not neglecting real vulnerabilities. In an ideal world, each CVE would have a clearly justified importance proportional to the actual impact.
Towards Better CVE Management
To improve this management, several proposals emerge:
- Collaborative Assessment: Involve multiple stakeholders in assessing the criticality of an issue.
- Increased Transparency: Publish detailed data on the evaluation criteria used.
- Intelligent Automation: Use artificial intelligence to filter reports and prioritize those that require immediate attention.
Conclusion
Managing CVEs is not just about assigning a number. It requires a balance between vigilance and discernment. For tech decision-makers, understanding these dynamics is crucial to ensuring robust and efficient security.
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