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

CVSS v2 Base Score: 7.6 | Impact Score: 10 | Exploitability Score: 4.9

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

VMScore: 765

Vector: AV:N/AC:H/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-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, 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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/* This is similar to the previous issues 1457, 1459 (MSRC 42551, MSRC 42552) If a JavaScript function is used as a consturctor, it sets the new object's "__proto__" to its "prototype" The JIT compiler uses NewScObjectNoCtor instructions to perform it, but those instructions are not checked by CheckJsArrayKills which is used to validate the arr ...

Microsoft Edge Chakra JIT suffers from an array type confusion via NewScObjectNoCtor ...

CWE-787 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0838 http://www.securitytracker.com/id/1040372 http://www.securityfocus.com/bid/102877 https://www.exploit-db.com/exploits/44080/https://nvd.nist.gov https://www.exploit-db.com/exploits/44080/

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CVE-2018-0838

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