CVE-2017-8658 ChakraCore RCE Vulnerability
Remote attackers can execute arbitrary code by exploiting a memory corruption flaw in the Chakra JavaScript engine's object handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-8658?
CVE-2017-8658 is a critical memory corruption vulnerability in Microsoft Chakracore, published on 11 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A remote code execution vulnerability exists in the way that the Chakra JavaScript engine renders when handling objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
Weakness: CWE-119
Which versions are affected by CVE-2017-8658?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.6.1 |
Microsoft.ChakraCore NuGet | All versions | 1.6.1 |
Products include Microsoft Chakracore.
How do I fix CVE-2017-8658?
Upgrade Microsoft.ChakraCore to 1.6.1 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-8658 being exploited?
There is no known exploitation of CVE-2017-8658 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Chakracore
Sources
Also known as GHSA-8v2h-4jpm-3wfm.