CVE-2018-8456

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8354, CVE-2018-8391, CVE-2018-8457, CVE-2018-8459.

CVSS v3.0 7.5 HIGH
CVSS v2.0 7.6 HIGH

7.5^/10

CVSS v3.0 : HIGH

V3 Legend

Vector : AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.6^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:H/Au:N/C:C/I:C/A:C

Exploitability : 4.9 / Impact : 10.0

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8456	Patch Vendor Advisory
http://www.securitytracker.com/id/1041623	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/105227	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

OR	cpe:2.3:o:microsoft:windows_10:1703:::::::*
	cpe:2.3:o:microsoft:windows_10:1709:::::::*
	cpe:2.3:o:microsoft:windows_10:1803:::::::*

Information

Published : 2018-09-12 17:29

Updated : 2020-08-24 10:37

NVD link : CVE-2018-8456

Mitre link : CVE-2018-8456

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

microsoft

edge
chakracore
windows_10

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8456", "name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8456", "tags": ["Patch", "Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.securitytracker.com/id/1041623", "name": "1041623", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "SECTRACK"}, {"url": "http://www.securityfocus.com/bid/105227", "name": "105227", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability.\" This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8354, CVE-2018-8391, CVE-2018-8457, CVE-2018-8459."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-787"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2018-8456", "ASSIGNER": "secure@microsoft.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 7.6, "accessVector": "NETWORK", "vectorString": "AV:N/AC:H/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "HIGH", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "severity": "HIGH", "impactScore": 10.0, "obtainAllPrivilege": false, "exploitabilityScore": 4.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}}, "publishedDate": "2018-09-13T00:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "1.10.1"}]}, {"children": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}, {"cpe23Uri": "cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false}]}], "operator": "AND", "cpe_match": []}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-08-24T17:37Z"}

7.5 /10