AZL-13300
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-13300.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-13300
- Upstream
- Published
- 2023-02-08T20:15:24Z
- Modified
- 2026-04-01T05:08:35.193811Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
- Summary
- CVE-2023-25165 affecting package cert-manager for versions less than 1.7.3-8
- Details
-
Helm is a tool that streamlines installing and managing Kubernetes applications.
getHostByNameis 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 withhelm install|upgrade|templateor 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 injectgetHostByNameinto 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 thegetHostByNamefunction is not being used in a template to disclose any information you do not want passed to DNS servers. - References