GO-2023-1547

Source

https://pkg.go.dev/vuln/GO-2023-1547

Import Source

https://vuln.go.dev/ID/GO-2023-1547.json

Aliases

Published

2023-02-14T15:53:55Z

Modified

2023-12-14T15:52:23Z

Summary

Information disclosure in helm.sh/helm/v3

Details

An information disclosure vulnerability exists in the getHostByName template function.

The function getHostByName is a Helm template function introduced in Helm v3. The function is able to accept a hostname and return an IP address for that hostname. To get the IP address the function performs a DNS lookup. The DNS lookup happens when used with "helm install|upgrade|template" or when the Helm SDK is used to render a chart.

Information passed into the chart can be disclosed to the DNS servers used to lookup the IP address. For example, a malicious chart could inject getHostByName into a chart in order to disclose values to a malicious DNS server.

References

Affected packages

Go / helm.sh/helm/v3

Package

Name: helm.sh/helm/v3

Affected ranges

Type: SEMVER
Events: Introduced

0The exact introduced commit is unknown

Fixed

3.11.1

Ecosystem specific

{
    "imports": [
        {
            "path": "helm.sh/helm/v3/cmd/helm",
            "symbols": [
                "addInstallFlags",
                "main",
                "newUpgradeCmd"
            ]
        },
        {
            "path": "helm.sh/helm/v3/pkg/action",
            "symbols": [
                "Configuration.renderResources",
                "Install.Run",
                "Install.RunWithContext",
                "Lint.Run",
                "Upgrade.Run",
                "Upgrade.RunWithContext",
                "Upgrade.prepareUpgrade"
            ]
        },
        {
            "path": "helm.sh/helm/v3/pkg/engine",
            "symbols": [
                "Engine.Render",
                "Engine.initFunMap",
                "Render",
                "RenderWithClient"
            ]
        }
    ]
}