CVE-2018-8139 ChakraCore RCE Vulnerability
Remote code execution via memory corruption in the Microsoft Edge scripting engine allows attackers to execute arbitrary code.
- 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-2018-8139?
CVE-2018-8139 is a high-severity memory corruption vulnerability in Microsoft Chakracore, published on 9 May 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 the scripting engine handles objects in memory in Microsoft Edge, aka "Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-0945, CVE-2018-0946, CVE-2018-0951, CVE-2018-0953, CVE-2018-0954, CVE-2018-0955, CVE-2018-1022, CVE-2018-8114, CVE-2018-8122, CVE-2018-8128, CVE-2018-8137.
Weakness: CWE-125
Which versions are affected by CVE-2018-8139?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.8.4 |
Microsoft.ChakraCore NuGet | All versions | 1.8.4 |
Products include Microsoft Chakracore, Microsoft Edge.
How do I fix CVE-2018-8139?
Upgrade Microsoft.ChakraCore to 1.8.4 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-8139 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-8139 exists.
Public exploit code: 2 Exploit-DB entries.
Other vulnerabilities in Microsoft Chakracore
Sources
Also known as GHSA-5hxp-3237-j2hp.