CVE-2020-17054 Chakra Scripting Engine Memory Corruption Vulnerability
A memory corruption vulnerability in the Chakra scripting engine allows attackers to execute arbitrary code in the context of the current user.
- 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-2020-17054?
CVE-2020-17054 is a medium-severity memory corruption vulnerability in Microsoft Chakracore, published on 11 Nov 2020. 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
Chakra Scripting Engine Memory Corruption Vulnerability
Weakness: CWE-787
Which versions are affected by CVE-2020-17054?
2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
Microsoft.ChakraCore NuGet | All versions | 1.11.23 |
Microsoft.ChakraCore NuGet | All versions | 1.11.23 |
Products include Microsoft Chakracore, Microsoft Edge.
How do I fix CVE-2020-17054?
Upgrade Microsoft.ChakraCore to 1.11.23 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-17054 being exploited?
There is no known exploitation of CVE-2020-17054 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Chakracore
Sources
Also known as GHSA-88cw-3m6x-49f7.