# CVE-2018-12608: docker.io: An issue was discovered in Docker Moby before 17.06.0

CVE-2018-12608 is fixed in 4 products on 1 platform, first by docker.io 18.06.1-0ubuntu1~18.04.1, released September 10, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-12608
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0092
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 10, 2018

## Description

An issue was discovered in Docker Moby before 17.06.0. The Docker engine validated a client TLS certificate using both the configured client CA root certificate and all system roots on non-Windows systems. This allowed a client with any domain validated certificate signed by a system-trusted root CA (as opposed to one signed by the configured CA root certificate) to authenticate.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | docker.io Ubuntu 18.04.6 LTS (bionic) | 18.06.1-0ubuntu1~18.04.1 | [docker.io 18.06.1-0ubuntu1~18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-docker.io-18.06.1-0ubuntu1-18.04.1.md) | Sep 10, 2018 |
| Linux | golang-docker-dev Ubuntu 18.04.6 LTS (bionic) | 18.06.1-0ubuntu1~18.04.1 | [golang-docker-dev 18.06.1-0ubuntu1~18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-golang-docker-dev-18.06.1-0ubuntu1-18.04.1.md) | Sep 10, 2018 |
| Linux | golang-github-docker-docker-dev Ubuntu 18.04.6 LTS (bionic) | 18.06.1-0ubuntu1~18.04.1 | [golang-github-docker-docker-dev 18.06.1-0ubuntu1~18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-golang-github-docker-docker-dev-18.06.1-0ubuntu1-18.04.1.md) | Sep 10, 2018 |
| Linux | vim-syntax-docker Ubuntu 18.04.6 LTS (bionic) | 18.06.1-0ubuntu1~18.04.1 | [vim-syntax-docker 18.06.1-0ubuntu1~18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-vim-syntax-docker-18.06.1-0ubuntu1-18.04.1.md) | Sep 10, 2018 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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