UBUNTU-CVE-2021-21303

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Source
https://ubuntu.com/security/CVE-2021-21303
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21303.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-21303
Related
Published
2021-02-05T22:15:00Z
Modified
2025-01-13T10:22:29Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

Helm is open-source software which is essentially "The Kubernetes Package Manager". Helm is a tool for managing Charts. Charts are packages of pre-configured Kubernetes resources. In Helm from version 3.0 and before version 3.5.2, there a few cases where data loaded from potentially untrusted sources was not properly sanitized. When a SemVer in the version field of a chart is invalid, in some cases Helm allows the string to be used "as is" without sanitizing. Helm fails to properly sanitized some fields present on Helm repository index.yaml files. Helm does not properly sanitized some fields in the plugin.yaml file for plugins In some cases, Helm does not properly sanitize the fields in the Chart.yaml file. By exploiting these attack vectors, core maintainers were able to send deceptive information to a terminal screen running the helm command, as well as obscure or alter information on the screen. In some cases, we could send codes that terminals used to execute higher-order logic, like clearing a terminal screen. Further, during evaluation, the Helm maintainers discovered a few other fields that were not properly sanitized when read out of repository index files. This fix remedies all such cases, and once again enforces SemVer2 policies on version fields. All users of the Helm 3 should upgrade to the fixed version 3.5.2 or later. Those who use Helm as a library should verify that they either sanitize this data on their own, or use the proper Helm API calls to sanitize the data.

References

Affected packages

Ubuntu:Pro:16.04:LTS / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@1.9.2-1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.9.1-1
1.9.2-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@2.8.8-1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.8.2-1
2.8.5-1
2.8.6-1
2.8.7-1
2.8.8-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@3.6.0-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.2-1
3.5.0-3
3.6.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:22.04:LTS / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@3.8.0-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.7.0-2
3.8.0-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.10 / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@3.8.4-2?arch=source&distro=oracular

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.8.4-1
3.8.4-2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / helm

Package

Name
helm
Purl
pkg:deb/ubuntu/helm@3.8.4-1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.8.4-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}