UBUNTU-CVE-2021-27018

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Source
https://ubuntu.com/security/CVE-2021-27018
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-27018
Upstream
  • CVE-2021-27018
Published
2021-08-30T18:15:00Z
Modified
2025-10-24T04:50:11Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The mechanism which performs certificate validation was discovered to have a flaw that resulted in certificates signed by an internal certificate authority to not be properly validated. This issue only affects clients that are configured to utilize Tenable.sc as the vulnerability data source.

References

Affected packages

Ubuntu:14.04:LTS / puppet

Package

Name
puppet
Purl
pkg:deb/ubuntu/puppet@3.4.3-1ubuntu1.3?arch=source&distro=trusty

Affected ranges

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

Affected versions

3.*
3.2.4-2ubuntu2
3.3.1-1ubuntu1
3.3.1-1ubuntu2
3.3.1-1ubuntu3
3.4.2-1
3.4.3-1
3.4.3-1ubuntu1
3.4.3-1ubuntu1.1
3.4.3-1ubuntu1.2
3.4.3-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppet"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppet-common"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppet-el"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppet-testsuite"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppetmaster"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppetmaster-common"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "puppetmaster-passenger"
        },
        {
            "binary_version": "3.4.3-1ubuntu1.3",
            "binary_name": "vim-puppet"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json"

Ubuntu:Pro:16.04:LTS / puppet

Package

Name
puppet
Purl
pkg:deb/ubuntu/puppet@3.8.5-2ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

3.*
3.7.2-5ubuntu2
3.8.4-1ubuntu1
3.8.5-1ubuntu1
3.8.5-2
3.8.5-2ubuntu0.1
3.8.5-2ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppet"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppet-common"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppet-el"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppet-testsuite"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppetmaster"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppetmaster-common"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "puppetmaster-passenger"
        },
        {
            "binary_version": "3.8.5-2ubuntu0.1+esm1",
            "binary_name": "vim-puppet"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json"

Ubuntu:18.04:LTS / puppet

Package

Name
puppet
Purl
pkg:deb/ubuntu/puppet@5.4.0-2ubuntu3?arch=source&distro=bionic

Affected ranges

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

Affected versions

4.*
4.10.4-2ubuntu1
4.10.4-2ubuntu2
4.10.4-2ubuntu3
5.*
5.4.0-2ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppet"
        },
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppet-common"
        },
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppet-master"
        },
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppet-master-passenger"
        },
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppetmaster"
        },
        {
            "binary_version": "5.4.0-2ubuntu3",
            "binary_name": "puppetmaster-passenger"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json"

Ubuntu:20.04:LTS / puppet

Package

Name
puppet
Purl
pkg:deb/ubuntu/puppet@5.5.10-4ubuntu3?arch=source&distro=focal

Affected ranges

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

Affected versions

5.*
5.4.0-2ubuntu3
5.5.10-4ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppet"
        },
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppet-common"
        },
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppet-master"
        },
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppet-master-passenger"
        },
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppetmaster"
        },
        {
            "binary_version": "5.5.10-4ubuntu3",
            "binary_name": "puppetmaster-passenger"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json"

Ubuntu:22.04:LTS / puppet

Package

Name
puppet
Purl
pkg:deb/ubuntu/puppet@5.5.22-4ubuntu0.2?arch=source&distro=jammy

Affected ranges

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

Affected versions

5.*
5.5.22-1ubuntu1
5.5.22-4
5.5.22-4ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.5.22-4ubuntu0.2",
            "binary_name": "puppet"
        },
        {
            "binary_version": "5.5.22-4ubuntu0.2",
            "binary_name": "puppet-master"
        },
        {
            "binary_version": "5.5.22-4ubuntu0.2",
            "binary_name": "puppet-master-passenger"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-27018.json"