CVE-2018-8291 : A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft brow

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8296, CVE-2018-8298.

Published 2018-07-11 00:29:01

Updated 2020-08-24 17:37:01

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Memory CorruptionExecute code

Exploit prediction scoring system (EPSS) score for CVE-2018-8291

EPSS FAQ

93.99%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-8291

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.6	HIGH	AV:N/AC:H/Au:N/C:C/I:C/A:C	4.9	10.0	NIST
Access Vector: Network Access Complexity: High Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.5	HIGH	CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H	1.6	5.9	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-8291

CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-8291

http://www.securitytracker.com/id/1041256

Microsoft Edge Multiple Object Memory Handling Errors Let Remote Users Execute Arbitrary Code and Bypass Security Restrictions - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8291

CVE-2018-8291 | Scripting Engine Memory Corruption Vulnerability
Patch;Vendor Advisory
http://www.securitytracker.com/id/1041258

Microsoft Internet Explorer Multiple Flaws Let Remote Users Execute Arbitrary Code and Bypass Security Controls - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
http://www.securityfocus.com/bid/104637

Microsoft Internet Explorer and Edge CVE-2018-8291 Remote Memory Corruption Vulnerability
Third Party Advisory;VDB Entry
https://www.exploit-db.com/exploits/45215/

Microsoft Edge Chakra JIT - 'DictionaryPropertyDescriptor::CopyFrom' Type Confusion
Exploit;Third Party Advisory;VDB Entry

Products affected by CVE-2018-8291

Microsoft » Internet Explorer » Version: 11
cpe:2.3:a:microsoft:internet_explorer:11:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows 10 » Version: 1703
When used together with: Microsoft » Windows 10 » Version: 1709
When used together with: Microsoft » Windows 10 » Version: 1803
When used together with: Microsoft » Windows 7 » Update SP1
When used together with: Microsoft » Windows 8.1
When used together with: Microsoft » Windows Rt 8.1
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1
When used together with: Microsoft » Windows Server 2012 » Version: R2
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » Edge » Version: N/A
cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 10 » Version: N/A
When used together with: Microsoft » Windows 10 » Version: 1607
When used together with: Microsoft » Windows 10 » Version: 1703
When used together with: Microsoft » Windows 10 » Version: 1709
When used together with: Microsoft » Windows 10 » Version: 1803
When used together with: Microsoft » Windows Server 2016 » Version: N/A
Microsoft » Chakracore
Versions before (<) 1.10.1
cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2018-8291

Exploit prediction scoring system (EPSS) score for CVE-2018-8291

CVSS scores for CVE-2018-8291

CWE ids for CVE-2018-8291

References for CVE-2018-8291

Products affected by CVE-2018-8291