CVE-2016-3386 ChakraCore RCE Vulnerability
Remote attackers can execute arbitrary code or cause denial of service via a crafted website exploiting memory corruption in the Chakra 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-2016-3386?
CVE-2016-3386 is a high-severity memory corruption vulnerability in Microsoft Edge, published on 14 Oct 2016. 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
The Chakra JavaScript engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-3389, CVE-2016-7190, and CVE-2016-7194.
Weakness: CWE-119
Which versions are affected by CVE-2016-3386?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.2.1 |
Microsoft.ChakraCore NuGet | All versions | 1.2.1 |
Products include Microsoft Edge.
How do I fix CVE-2016-3386?
Upgrade Microsoft.ChakraCore to 1.2.1 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-3386 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-3386 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-v9jg-m6g5-h3hh.