# CVE-2021-3583: ansible: A flaw was found in Ansible, where a user's controller is vulnerable to template injection

CVE-2021-3583 is fixed in ansible on 1 platform, first by ansible 2.5.1+dfsg-1ubuntu0.1+esm1, released September 22, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-3583
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0090
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 22, 2021

## Description

A flaw was found in Ansible, where a user's controller is vulnerable to template injection. This issue can occur through facts used in the template if the user is trying to put templates in multi-line YAML strings and the facts being handled do not routinely include special template characters. This flaw allows attackers to perform command injection, which discloses sensitive information. The highest threat from this vulnerability is to confidentiality and integrity.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ansible Ubuntu 18.04.6 LTS (bionic) | 2.5.1+dfsg-1ubuntu0.1+esm1 | [ansible 2.5.1+dfsg-1ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ansible-2.5.1-dfsg-1ubuntu0.1-esm1.md) | Sep 22, 2021 |
| Linux | ansible Ubuntu 20.04 LTS (focal) | 2.9.6+dfsg-1ubuntu0.1~esm1 | [ansible 2.9.6+dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ansible-2.9.6-dfsg-1ubuntu0.1-esm1.md) | Mar 3, 2022 |
| Linux | ansible Ubuntu 22.04.1 LTS (jammy) | 2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1 | [ansible 2.10.7+merged+base+2.10.8+dfsg-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ansible-2.10.7-merged-base-2.10.8-dfsg-1ubuntu0.1-esm1.md) | Mar 3, 2022 |

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