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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 10 Mar 2025 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-03-10T21:15:03.873Z

Reserved: 2023-02-03T16:59:18.246Z

Link: CVE-2023-25165

cve-icon Vulnrichment

Updated: 2024-08-02T11:18:35.855Z

cve-icon NVD

Status : Modified

Published: 2023-02-08T20:15:24.937

Modified: 2024-11-21T07:49:14.133

Link: CVE-2023-25165

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-02-08T00:00:00Z

Links: CVE-2023-25165 - Bugzilla

cve-icon OpenCVE Enrichment

No data.