CVE-2018-12608

Publication date 10 September 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
docker.io	18.10 cosmic	Fixed 18.06.1-0ubuntu1
	18.04 LTS bionic	Fixed 18.06.1-0ubuntu1~18.04.1
	16.04 LTS xenial	Fixed 18.06.1-0ubuntu1~16.04.2
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
docker.io	Upstream: https://github.com/moby/moby/pull/33182

Severity score breakdown

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality impact	None
Integrity impact	High
Availability impact	None

Scores

Parameter	Value
Base score	7.5 · High
Exploitability score	-
Impact score	-

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Other references

https://www.cve.org/CVERecord?id=CVE-2018-12608