CVE-2018-7167

Name: CVE-2018-7167
Creator: NVD / NIST
Published: 2018-06-13T16:29:01.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 7.21%

Last modified Jun 17, 2026

CVE-2018-7167 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. EPSS estimates a 7.21% chance of exploitation in the next 30 days.

Description

Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. All versions of Node.js 6.x (LTS "Boron"), 8.x (LTS "Carbon"), and 9.x are vulnerable. All versions of Node.js 10.x (Current) are NOT vulnerable.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

7.21%

93.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Nodejs	Node.Js	> 6.9.0, < 6.14.3
Nodejs	Node.Js	>= 8.9.0, < 8.11.3
Nodejs	Node.Js	>= 9.0.0, < 9.11.2

References

http://www.securityfocus.com/bid/106363Third Party Advisory, VDB Entry
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/Vendor Advisory
https://security.gentoo.org/glsa/202003-48Third Party Advisory
http://www.securityfocus.com/bid/106363Third Party Advisory, VDB Entry
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/Vendor Advisory
https://security.gentoo.org/glsa/202003-48Third Party Advisory

Timeline

Published: Jun 13, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-7167?

How severe is CVE-2018-7167?

CVE-2018-7167 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 7.21% probability of exploitation in the next 30 days.

How do I fix CVE-2018-7167?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-7167?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST