#VU64818 Resource exhaustion in Docker Engine - CVE-2018-20699

Vulnerability identifier: #VU64818

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

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
https://bugzilla.redhat.com/show_bug.cgi?id=1666565
https://github.com/docker/engine/pull/70
https://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.