CVE-2018-0994

Microsoft Chakra Array.splice Use-After-Free Remote Code Execution Vulnerability

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-0979, CVE-2018-0980, CVE-2018-0990, CVE-2018-0993, CVE-2018-0995, CVE-2018-1019.

Existe una vulnerabilidad de ejecución remota de código que se manifiesta en la forma en la que el motor de scripting de Chakra gestiona los objetos en la memoria en Microsoft Edge. Esto también se conoce como "Chakra Scripting Engine Memory Corruption Vulnerability". Esto afecta a Microsoft Edge y ChakraCore. El ID de este CVE es diferente de CVE-2018-0979, CVE-2018-0980, CVE-2018-0990, CVE-2018-0993, CVE-2018-0995, CVE-2018-1019.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Chakra as well as Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the implementation of the Array.splice method. By performing actions in JavaScript, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code under the context of the current process.

*Credits: Anonymous

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-12-01 CVE Reserved
2018-04-12 CVE Published
2024-07-16 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/103630	Third Party Advisory
http://www.securitytracker.com/id/1040650	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0994	2020-08-24

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	-	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1511 Search vendor "Microsoft" for product "Windows 10" and version "1511"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1607 Search vendor "Microsoft" for product "Windows 10" and version "1607"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1703 Search vendor "Microsoft" for product "Windows 10" and version "1703"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1709 Search vendor "Microsoft" for product "Windows 10" and version "1709"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016"	-	-	Safe