Denial of service in js-yaml (npm)

1) Resource exhaustion

EUVDB-ID: #VU18053

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: N/A

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:npm:js-yaml:0.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:npm:js-yaml:0.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:npm:js-yaml:0.2.2:*:*:*:*:*:*:*

External links

https://www.npmjs.com/advisories/788

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.