CVE-2018-1023 Memory corruption in ChakraCore

What is CVE-2018-1023?

CVE-2018-1023 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 12 Apr 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory, aka "Microsoft Browser Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore.

Weakness: CWE-787

Which versions are affected by CVE-2018-1023?

It affects 2 products.

Products include Microsoft Chakracore, Microsoft Edge.

How do I fix CVE-2018-1023?

No fix has been published for CVE-2018-1023 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-1023 being exploited?

There is no known exploitation of CVE-2018-1023 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Chakracore

• CVE-2018-8298 ChakraCore Scripting Engine Type Confusion Exploited High 7.5
• CVE-2020-0878 Microsoft Edge and Internet Explorer Memory Corruption Exploited Medium 4.2
• CVE-2018-8500 ChakraCore RCE Vulnerability Critical 9.8
• CVE-2017-11767 ChakraCore vulnerable to privilege escalation Critical 9.8
• CVE-2017-8658 ChakraCore RCE Vulnerability Critical 9.8

All Microsoft Chakracore vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-v69p-76x5-jv3v.