CVE-2017-11806 ChakraCore RCE Vulnerability

High 7.5 Published 13 Oct 2017 Updated 16 Sep 2024

An attacker can execute arbitrary code in the context of the current user via a memory corruption flaw in the ChakraCore scripting engine.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2017-11806?

CVE-2017-11806 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 13 Oct 2017. 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

ChakraCore and Microsoft Edge in Microsoft Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11792, CVE-2017-11793, CVE-2017-11796, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11802, CVE-2017-11804, CVE-2017-11805, CVE-2017-11807, CVE-2017-11808, CVE-2017-11809, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812, and CVE-2017-11821.

Weakness: CWE-119

Which versions are affected by CVE-2017-11806?

2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.

Package	Affected	Fixed in
`Microsoft.ChakraCore` NuGet	All versions	`1.7.3`
`Microsoft.ChakraCore` NuGet	All versions	`1.7.3`

Products include Microsoft Chakracore, Microsoft Edge.

How do I fix CVE-2017-11806?

Upgrade Microsoft.ChakraCore to 1.7.3 or later.

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

Is CVE-2017-11806 being exploited?

There is no known exploitation of CVE-2017-11806 in the wild and no public exploit code.

All Microsoft Chakracore vulnerabilities

Sources

Also known as GHSA-6r3x-5gwg-g642.