CVE-2018-20699

Publication date 12 January 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Docker Engine before 18.09 allows attackers to cause a denial of service (dockerd memory consumption) via a large integer in a --cpuset-mems or --cpuset-cpus value, related to daemon/daemon_unix.go, pkg/parsers/parsers.go, and pkg/sysinfo/sysinfo.go.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
docker.io	19.04 disco	Fixed 18.09.2-0ubuntu1
	18.10 cosmic	Fixed 18.09.2-0ubuntu1~18.10.1
	18.04 LTS bionic	Fixed 18.09.2-0ubuntu1~18.04.1
	16.04 LTS xenial	Fixed 18.09.2-0ubuntu1~16.04.1
	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	Other: https://github.com/docker/engine/pull/70 Other: https://github.com/moby/moby/pull/37967

Severity score breakdown

CVSS version: CVSS v3.0

Base score 4.9 · Medium

Base metrics

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

Scores

Parameter	Value
Base score	4.9 · Medium
Exploitability score	-
Impact score	-

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

References

Other references

https://www.cve.org/CVERecord?id=CVE-2018-20699