CVE-2016-3259 ChakraCore RCE Vulnerability
Remote attackers can execute arbitrary code or cause denial of service via crafted websites exploiting memory corruption in Microsoft scripting engines.
- 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-2016-3259?
CVE-2016-3259 is a high-severity memory corruption vulnerability in Microsoft Edge, published on 13 Jul 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 Microsoft (1) JScript 9, (2) VBScript, and (3) Chakra JavaScript engines, as used in Microsoft Internet Explorer 9 through 11, Microsoft Edge, and other products, allow 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-2016-3248.
Weakness: CWE-119
Which versions are affected by CVE-2016-3259?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.2.0.0 |
Microsoft.ChakraCore NuGet | All versions | 1.2.0.0 |
Products include Microsoft Edge, Microsoft Internet Explorer.
How do I fix CVE-2016-3259?
Upgrade Microsoft.ChakraCore to 1.2.0.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-3259 being exploited?
There is no known exploitation of CVE-2016-3259 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-wm27-49x2-mg9q.