CVE-2020-15184: Helm.sh/helm/v3 Aliases Are Never Checked Vulnerability

LOW
Advisory Identifier: GHSA-9vp5-m38w-j776
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CVSS 3.7
CWE-20 CWE-74
Published
Advisory Summary

CVE-2020-15184 is a LOW (CVSS 3.7) aliases are never checked vulnerability (CWE-20: Improper Input Validation) affecting Helm.sh/helm/v3 libraries in the Go ecosystem. The issue involves aliases are never checked in helm. Remediation is available by upgrading affected packages to version 3.3.2, 2.16.11.

CVE-2020-15184 at a Glance

CVE Identifier CVE-2020-15184
GHSA Identifier GHSA-9vp5-m38w-j776
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-20: Improper Input Validation
Affected Product Helm.sh/helm/v3
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-15184

To remediate this vulnerability, upgrade all affected Helm.sh/helm/v3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

helm.sh/helm/v3 fixed: 3.3.2 
Upgrade helm.sh/helm/v3 to 3.3.2
helm.sh/helm fixed: 2.16.11 
Upgrade helm.sh/helm to 2.16.11
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for helm.sh/helm/v3

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-15184, inspect your project dependencies for Helm.sh/helm/v3:

inspect dependencies for helm.sh/helm/v3

Analyze the terminal output to locate any version of Helm.sh/helm/v3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.3.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Helm.sh/helm/v3, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact During a security audit of Helm's code base, security researchers at Trail of Bits identified a bug in which the `alias` field on a `Chart.yaml` is not properly sanitized. This could lead to the injection of unwanted information into a chart. ### Patches This issue has been patched in Helm 3.3.2 and 2.16.11 ### Specific Go Packages Affected helm.sh/helm/v3/pkg/chartutil ### Workarounds Manually review the `dependencies` field of any untrusted chart, verifying that the `alias` field is either not used, or (if used) does not contain newlines or path characters.

CVE-2020-15184 Affected Helm.sh/helm/v3 Versions

2 component(s)
Fixed Versions:
3.3.22.16.11
Product / Package Ecosystem Affected Versions Fixed Version
helm.sh/helm/v3
golang/helm.sh/helm/v3
Go
≥ 3.0.0
< 3.3.2
3.3.2
helm.sh/helm
golang/helm.sh/helm
Go
< 2.16.11
2.16.11

References

GitHub Advisory / Wiki ADVISORY
https://github.com/helm/helm/security/advisories/GHSA-9vp5-m38w-j776
NVD — CVE-2020-15184 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15184
Security Fix Commit FIX COMMIT
https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946
Security Fix Commit FIX COMMIT
https://github.com/helm/helm/commit/e7c281564d8306e1dcf8023d97f972449ad74850
Helm.sh/helm/v3 Source Repository REPOSITORY
https://github.com/helm/helm

Frequently Asked Questions

What is CVE-2020-15184?
CVE-2020-15184 is a security vulnerability in Helm.sh/helm/v3 involving Aliases are never checked in helm under CWE-20: Improper Input Validation.
Which Helm.sh/helm/v3 versions are affected?
Affected versions include releases prior to 3.3.2, 2.16.11 across affected packages: helm.sh/helm/v3, helm.sh/helm.
What version fixes CVE-2020-15184?
Upgrading to 3.3.2, 2.16.11 (or the latest patched release for your respective branch) resolves the vulnerability.
Is helm.sh/helm/v3 affected?
Yes, helm.sh/helm/v3 is affected in releases prior to 3.3.2. Upgrade your dependency to 3.3.2 or later.
Is helm.sh/helm affected?
Yes, helm.sh/helm is affected in releases prior to 2.16.11. Upgrade your dependency to 2.16.11 or later.
What is the CVSS score of CVE-2020-15184?
CVE-2020-15184 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2020-15184?
CVE-2020-15184 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Go dependencies for CVE-2020-15184?
Run the dependency tree command: 'inspect dependencies for helm.sh/helm/v3'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9vp5-m38w-j776",
  "modified" : "2023-10-02T12:24:31Z",
  "published" : "2021-05-24T16:56:58Z",
  "aliases" : [ "CVE-2020-15184" ],
  "summary" : "Aliases are never checked in helm",
  "details" : "### Impact\n\nDuring a security audit of Helm's code base, security researchers at Trail of Bits identified a bug in which the `alias` field on a `Chart.yaml` is not properly sanitized. This could lead to the injection of unwanted information into a chart.\n\n### Patches\n\nThis issue has been patched in Helm 3.3.2 and 2.16.11\n\n### Specific Go Packages Affected\nhelm.sh/helm/v3/pkg/chartutil\n\n### Workarounds\n\nManually review the `dependencies` field of any untrusted chart, verifying that the `alias` field is either not used, or (if used) does not contain newlines or path characters.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "helm.sh/helm/v3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.3.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "helm.sh/helm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.16.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/helm/helm/security/advisories/GHSA-9vp5-m38w-j776"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-15184"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/helm/helm/commit/6aab63765f99050b115f0aec3d6350c85e8da946"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/helm/helm/commit/e7c281564d8306e1dcf8023d97f972449ad74850"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/helm/helm"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20", "CWE-74" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-24T16:50:04Z",
    "nvd_published_at" : "2020-09-17T21:15:00Z"
  }
}