UBUNTU-CVE-2020-1733

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Source
https://ubuntu.com/security/CVE-2020-1733
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-1733.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-1733
Related
Published
2020-03-11T19:15:00Z
Modified
2024-12-18T16:43:00Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L CVSS Calculator
Summary
[none]
Details

A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.

References

Affected packages

Ubuntu:Pro:14.04:LTS / ansible

Package

Name
ansible
Purl
pkg:deb/ubuntu/ansible?arch=src?distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

1.*

1.1+dfsg-1
1.3.4+dfsg-1
1.4.0+dfsg-1
1.4.1+dfsg-1
1.4.3+dfsg-1
1.4.4+dfsg-1
1.5.4+dfsg-1
1.5.4+dfsg-1ubuntu0.1~esm2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:16.04:LTS / ansible

Package

Name
ansible
Purl
pkg:deb/ubuntu/ansible?arch=src?distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.0.2-2ubuntu1.3+esm1

Affected versions

1.*

1.9.2+dfsg-2
1.9.4-1

2.*

2.0.0.2-2
2.0.0.2-2ubuntu1
2.0.0.2-2ubuntu1.1
2.0.0.2-2ubuntu1.2
2.0.0.2-2ubuntu1.3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.0.0.2-2ubuntu1.3+esm1",
            "binary_name": "ansible"
        },
        {
            "binary_version": "2.0.0.2-2ubuntu1.3+esm1",
            "binary_name": "ansible-fireball"
        },
        {
            "binary_version": "2.0.0.2-2ubuntu1.3+esm1",
            "binary_name": "ansible-node-fireball"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / ansible

Package

Name
ansible
Purl
pkg:deb/ubuntu/ansible?arch=src?distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.5.1+dfsg-1ubuntu0.1+esm1

Affected versions

2.*

2.3.1.0+dfsg-2
2.5.0+dfsg-1
2.5.1+dfsg-1
2.5.1+dfsg-1ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.5.1+dfsg-1ubuntu0.1+esm1",
            "binary_name": "ansible"
        }
    ]
}

Ubuntu:20.04:LTS / ansible

Package

Name
ansible
Purl
pkg:deb/ubuntu/ansible?arch=src?distro=focal

Affected ranges

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

Affected versions

2.*

2.8.3+dfsg-1
2.8.6+dfsg-1
2.9.2+dfsg-1
2.9.4+dfsg-1
2.9.6+dfsg-1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:20.04:LTS / ansible

Package

Name
ansible
Purl
pkg:deb/ubuntu/ansible?arch=src?distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.9.6+dfsg-1ubuntu0.1~esm1

Affected versions

2.*

2.8.3+dfsg-1
2.8.6+dfsg-1
2.9.2+dfsg-1
2.9.4+dfsg-1
2.9.6+dfsg-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "2.9.6+dfsg-1ubuntu0.1~esm1",
            "binary_name": "ansible"
        },
        {
            "binary_version": "2.9.6+dfsg-1ubuntu0.1~esm1",
            "binary_name": "ansible-doc"
        }
    ]
}