Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-wgw2-wwq8-c7wf
Advisory ID github_osv/GHSA-wgw2-wwq8-c7wf
Aliases CVE-2018-8298
Summary ChakraCore RCE Vulnerability 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 ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
Status Published
Exploitability 2.0
Weighted Severity 6.8
Risk 10.0
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
System Score Found at
cvssv3 7.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-wgw2-wwq8-c7wf/GHSA-wgw2-wwq8-c7wf.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/chakra-core/ChakraCore
https://github.com/chakra-core/ChakraCore/commit/cb9957e2763c36dbd12afa5c9261465159e16c86
https://github.com/chakra-core/ChakraCore/pull/5444
https://web.archive.org/web/20210124183835/http://www.securityfocus.com/bid/104639
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298
https://www.exploit-db.com/exploits/45217
CVE-2018-8298 https://nvd.nist.gov/vuln/detail/CVE-2018-8298
CVE-2018-8298 Other https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298
Data source Exploit-DB
Date added Aug. 17, 2018
Description Microsoft Edge Chakra JIT - InitializeNumberFormat and InitializeDateTimeFormat Type Confusion
Ransomware campaign use Known
Source publication date Aug. 17, 2018
Exploit type dos
Platform windows
Source update date Aug. 17, 2018
Source URL https://bugs.chromium.org/p/project-zero/issues/detail?id=1582
Data source KEV
Date added March 3, 2022
Description The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
Required action Apply updates per vendor instructions.
Due date March 17, 2022
Note 
https://nvd.nist.gov/vuln/detail/CVE-2018-8298
Ransomware campaign use Unknown

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-wgw2-wwq8-c7wf/GHSA-wgw2-wwq8-c7wf.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:A/A:N/T:T/P:M/B:A/M:M/D:A/2025-02-07T16:26:02Z/

Decision: Attend

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2018/8xxx/CVE-2018-8298.json

Source Advisory: vulnrichment/CVE-2018-8298

View SSVC decision tree 
[{'Exploitation': 'active'},
 {'Automatable': 'no'},
 {'Technical Impact': 'total'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]