GO-2022-0962

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Source

https://pkg.go.dev/vuln/GO-2022-0962

Import Source

https://vuln.go.dev/ID/GO-2022-0962.json

JSON Data

https://api.osv.dev/v1/vulns/GO-2022-0962

Aliases

Related

Published

2022-09-02T15:19:52Z

Modified

2024-05-20T16:03:47Z

Summary

Denial of service through string value parsing in helm.sh/helm/v3

Details

Applications that use the strvals package in the Helm SDK to parse user supplied input can suffer a Denial of Service when that input causes a panic that cannot be recovered from.

The strvals package contains a parser that turns strings into Go structures. For example, the Helm client has command line flags like --set, --set-string, and others that enable the user to pass in strings that are merged into the values. The strvals package converts these strings into structures Go can work with. Some string inputs can cause array data structures to be created causing an out of memory panic.

The Helm Client will panic with input to --set, --set-string, and other value setting flags that causes an out of memory panic. Helm is not a long running service so the panic will not affect future uses of the Helm client.

References

Credits

- Ada Logics in a fuzzing audit sponsored by CNCF

Affected packages

Go / helm.sh/helm/v3

Package

Name: helm.sh/helm/v3; View open source insights on deps.dev
Purl: pkg:golang/helm.sh/helm/v3

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

3.9.4

Ecosystem specific

{
    "imports": [
        {
            "path": "helm.sh/helm/v3/pkg/strvals",
            "symbols": [
                "Parse",
                "ParseFile",
                "ParseInto",
                "ParseIntoFile",
                "ParseIntoString",
                "ParseString",
                "ToYAML",
                "setIndex"
            ]
        }
    ]
}