Vulnerability identifier: #VU18053

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
js-yaml (npm)
Web applications / JS libraries

Vendor: npm Inc.

Description

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

The vulnerability exists due to improper input validation when processing YAML files. A remote attacker can pass a specially crafted YAML file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

js-yaml (npm): 0.2.0 - 3.12.2

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External links
http://www.npmjs.com/advisories/788

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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