Published: 15/02/2018 Updated: 24/08/2020

CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6

CVSS v3 Base Score: 7.5 | Impact Score: 5.9 | Exploitability Score: 1.6

VMScore: 935

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

Microsoft Edge and ChakraCore in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0840, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.

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microsoft chakracore -
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/* If a native array is used as a prototype, it is converted to a Var array by the Js::JavascriptNativeFloatArray::SetIsPrototype method In the JIT compiler, it uses InitProto instructions to set object literals' prototype But when optimizing those instructions, it doesn't reset the previous array validity even it can change the type of arrays ...

CWE-787 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0834 http://www.securitytracker.com/id/1040372 http://www.securityfocus.com/bid/102859 https://www.exploit-db.com/exploits/44078/https://nvd.nist.gov https://www.exploit-db.com/exploits/44078/

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CVE-2018-0834

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