CVE-2018-7167

nodejs: Denial of Service by calling Buffer.fill() or Buffer.alloc() with specially crafted parameters

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La llamada a Buffer.fill() o Buffer.alloc() con algunos parámetros puede conducir a un bloqueo y a una denegación de servicio (DoS) posterior. Para abordar esta vulnerabilidad, las implementaciones de Buffer.alloc() y Buffer.fill() se actualizaron para que se llenen con cero en lugar de bloquearse en este tipo de casos. Todas las versiones de Node.js 6.x (LTS "Boron"), 8.x (LTS "Carbon") 9.x son vulnerables. Todas las versiones de Node.js 10.x (actual) NO son vulnerables.

It was found that the Buffer.fill() and Buffer.alloc() function may hang. An attacker able to control the input of these function could use this flaw to cause a denial of service.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-02-15 CVE Reserved
2018-06-13 CVE Published
2024-01-31 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/106363	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases	2022-08-29
https://security.gentoo.org/glsa/202003-48	2022-08-29
https://access.redhat.com/security/cve/CVE-2018-7167	2018-10-18
https://bugzilla.redhat.com/show_bug.cgi?id=1591006	2018-10-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				> 6.9.0 < 6.14.3 Search vendor "Nodejs" for product "Node.js" and version " > 6.9.0 < 6.14.3"		lts		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 8.9.0 < 8.11.3 Search vendor "Nodejs" for product "Node.js" and version " >= 8.9.0 < 8.11.3"		lts		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 9.0.0 < 9.11.2 Search vendor "Nodejs" for product "Node.js" and version " >= 9.0.0 < 9.11.2"		-		Affected