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Stack-based Buffer Overflow

CVE-2025-32387

Medium
6.5/10

Summary

Helm is a package manager for Charts for Kubernetes. A JSON Schema file within a chart can be crafted with a deeply nested chain of references, leading to parser recursion that can exceed the stack size limit and trigger a Stack Overflow. This issue affects helm.sh/helm/v3 package versions prior to 3.17.3. This has the same fix as CVE-2025-32386.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • REQUIRED
  • NONE
  • NONE
  • HIGH

CWE-121 - Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References

Advisory Timeline

  • Published