Vulnerability identifier: #VU64818

Vulnerability risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-20699

CWE-ID: CWE-400

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Docker Engine
Server applications / Virtualization software

Vendor: Docker Inc.

Description

The vulnerability allows a remote attacker on the local network to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker on the local network can 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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Docker Engine: 0.0.3 - 18.06.3

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=1666565
http://github.com/docker/engine/pull/70
http://github.com/moby/moby/pull/37967

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.