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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2023-02-08T19:07:14.089Z
Updated: 2024-08-02T11:18:35.855Z
Reserved: 2023-02-03T16:59:18.246Z
Link: CVE-2023-25165
Vulnrichment
No data.
NVD
Status : Modified
Published: 2023-02-08T20:15:24.937
Modified: 2024-11-21T07:49:14.133
Link: CVE-2023-25165
Redhat