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GHSA-pwcw-6f5g-gxf8.json
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GHSA-pwcw-6f5g-gxf8.json
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{
"schema_version": "1.4.0",
"id": "GHSA-pwcw-6f5g-gxf8",
"modified": "2023-02-08T22:36:51Z",
"published": "2023-02-08T22:36:51Z",
"aliases": [
"CVE-2023-25165"
],
"summary": "Helm vulnerable to information disclosure via getHostByName Function ",
"details": "A Helm contributor discovered an information disclosure vulnerability using the `getHostByName` template function.\n\n### Impact\n\n`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.\n\nInformation 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.\n\n### Patches\n\nThe issue has been fixed in Helm 3.11.1.\n\n### Workarounds\n\nPrior to using a chart with Helm verify the `getHostByName` function is not being used in a template to disclose any information you do not want passed to DNS servers.\n\n### For more information\n\nHelm's security policy is spelled out in detail in our [SECURITY](https://github.com/helm/community/blob/master/SECURITY.md) document.\n\n### Credits\n\nDisclosed by Philipp Stehle at SAP.",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "helm.sh/helm/v3"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.11.1"
}
]
}
]
}
],
"references": [
{
"type": "WEB",
"url": "https://github.com/helm/helm/security/advisories/GHSA-pwcw-6f5g-gxf8"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25165"
},
{
"type": "WEB",
"url": "https://github.com/helm/helm/commit/293b50c65d4d56187cd4e2f390f0ada46b4c4737"
},
{
"type": "WEB",
"url": "https://github.com/helm/helm/commit/5abcf74227bfe8e5a3dbf105fe62e7b12deb58d2"
},
{
"type": "PACKAGE",
"url": "https://github.com/helm/helm"
},
{
"type": "WEB",
"url": "https://pkg.go.dev/vuln/GO-2023-1547"
}
],
"database_specific": {
"cwe_ids": [
"CWE-200"
],
"severity": "MODERATE",
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T22:36:51Z",
"nvd_published_at": "2023-02-08T20:15:00Z"
}
}