CVE Vulnerability

CVE-2023-25165

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.

4.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/helm/helm/commit/5abcf74227bfe8e5a3dbf105fe62e7b12deb58d2 Patch
https://github.com/helm/helm/security/advisories/GHSA-pwcw-6f5g-gxf8 Exploit Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*
Information

Published : 2023-02-08 08:15

Updated : 2023-02-16 08:10

NVD link : CVE-2023-25165

Mitre link : CVE-2023-25165

Products Affected
No products.
CWE
CWE-200