Vulnerability identifier: #VU20969

Vulnerability risk: Medium

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-14271

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Docker
Server applications / Virtualization software

Vendor: Docker Inc.

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the application loads NSS libraries in docker cp in an insecure manner. A local attacker can pass a specially crafted library file to the application and execute arbitrary code on the system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Docker: 19.03.0

---

External links
http://docs.docker.com/engine/release-notes/
http://github.com/moby/moby/issues/39449

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.