GHSA-5xqw-8hwv-wg92
Helm Allows A Specially Crafted JSON Schema To Cause A Stack Overflow
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | helm.sh/helm/v3 | < 3.17.3 | 3.17.3 |
Details
As written in the advisory (Markdown source, shown as plain text).
A Helm contributor discovered that a specially crafted JSON Schema within a chart can lead to a stack overflow.
### Impact
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.
### Patches
This issue has been resolved in Helm v3.17.3.
### Workarounds
Ensure that the JSON Schema within any charts loaded by Helm does not have a large number of nested references. These JSON Schema files are larger than 10 MiB.
### For more information
Helm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document.
### Credits
Disclosed by Jakub Ciolek at AlphaSense.
References
External links from the advisory. They lead to third-party sites.