cve-2023-25165
Vulnerability from cvelistv5
Published
2023-02-08 19:07
Modified
2024-08-02 11:18
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
Helm is a tool that streamlines installing and managing Kubernetes applications.`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. The issue has been fixed in Helm 3.11.1. Prior 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.
References
security-advisories@github.comhttps://github.com/helm/helm/commit/5abcf74227bfe8e5a3dbf105fe62e7b12deb58d2Patch
security-advisories@github.comhttps://github.com/helm/helm/security/advisories/GHSA-pwcw-6f5g-gxf8Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/helm/helm/commit/5abcf74227bfe8e5a3dbf105fe62e7b12deb58d2Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/helm/helm/security/advisories/GHSA-pwcw-6f5g-gxf8Exploit, Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-02T11:18:35.855Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          "versions": [
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
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            "privilegesRequired": "LOW",
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            "userInteraction": "NONE",
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            "version": "3.1"
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      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2023-02-08T19:07:14.089Z",
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        "discovery": "UNKNOWN"
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    "dateReserved": "2023-02-03T16:59:18.246Z",
    "dateUpdated": "2024-08-02T11:18:35.855Z",
    "state": "PUBLISHED"
  },
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  }
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