CVE-2018-12115

nodejs: Out of bounds (OOB) write via UCS-2 encoding

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2'`, `'ucs-2'`, `'utf16le'` and `'utf-16le'`), `Buffer#write()` can be abused to write outside of the bounds of a single `Buffer`. Writes that start from the second-to-last position of a buffer cause a miscalculation of the maximum length of the input bytes to be written.

En todas las versiones de Node.js anteriores a la 6.14.4, 8.11.4 y 10.9.0, cuando se utiliza con codificación UCS-2 (reconocida por Node.js bajo los nombres "ucs2", "ucs-2", "utf16le" y "utf-16le"), se puede explotar "Buffer#write()" para escribir fuera de los límites de un búfer. Las escrituras que empiezan desde la segunda hasta la última posición de un búfer provocan un error de cálculo de la longitud máxima de los bytes de entrada que se van a escribir.

*Credits: N/A

CVSS Scores

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

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

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

2018-06-11 CVE Reserved
2018-08-21 CVE Published
2024-03-31 EPSS Updated
2024-09-16 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-787: Out-of-bounds Write

CAPEC

References (10)

URL	Tag	Source
http://www.securityfocus.com/bid/105127	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2552	2020-03-20
https://access.redhat.com/errata/RHSA-2018:2553	2020-03-20
https://access.redhat.com/errata/RHSA-2018:2944	2020-03-20
https://access.redhat.com/errata/RHSA-2018:2949	2020-03-20
https://access.redhat.com/errata/RHSA-2018:3537	2020-03-20
https://nodejs.org/en/blog/vulnerability/august-2018-security-releases	2020-03-20
https://security.gentoo.org/glsa/202003-48	2020-03-20
https://access.redhat.com/security/cve/CVE-2018-12115	2018-11-20
https://bugzilla.redhat.com/show_bug.cgi?id=1620219	2018-11-20

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"				< 6.14.4 Search vendor "Nodejs" for product "Node.js" and version " < 6.14.4"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 8.0.0 < 8.11.4 Search vendor "Nodejs" for product "Node.js" and version " >= 8.0.0 < 8.11.4"		-		Affected
Nodejs Search vendor "Nodejs"		Node.js Search vendor "Nodejs" for product "Node.js"				>= 10.0.0 < 10.9.0 Search vendor "Nodejs" for product "Node.js" and version " >= 10.0.0 < 10.9.0"		-		Affected
Redhat Search vendor "Redhat"		Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform"				3.11 Search vendor "Redhat" for product "Openshift Container Platform" and version "3.11"		-		Affected