Denial of Service Vulnerability in Node.js
Summary
CVE-2018-7167: Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. Affects nodejs across 2 version ranges.
< 8.11.3-r0
< 8c9f0d0fb4c3b8625c4b7a2ec654655fe9a67c92
Fixed in 8.11.3-r0. How to fix ↓
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Background
Node.js is a popular JavaScript runtime built on Chrome's V8 JavaScript engine. It allows developers to build scalable and high-performance applications. However, a vulnerability has been discovered in Node.js that can lead to a Denial of Service (DoS) attack.
Vulnerability Detail
The vulnerability, identified as CVE-2018-7167, arises when calling Buffer.fill() or Buffer.alloc() with certain parameters. This can cause the application to hang indefinitely, resulting in a DoS condition. Attackers can exploit this vulnerability to disrupt the availability of affected Node.js applications. The vulnerability affects all versions of Node.js 6.x, 8.x, and 9.x, but not Node.js 10.x.
How To Fix
Minimum fixed version
8.11.3-r0
This is the first release that contains the fix.
sudo apk add --upgrade nodejsTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to upgrade to the fixed version of Node.js.
Conclusion
The Denial of Service vulnerability in Node.js can be mitigated by upgrading to the fixed version. It is important to keep your Node.js installations up to date to ensure the security and stability of your applications. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for nodejs →
FAQ
The vulnerability can lead to a Denial of Service (DoS) attack, causing the affected Node.js application to become unresponsive or crash.
All versions of Node.js 6.x, 8.x, and 9.x are vulnerable. Node.js 10.x is not affected.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will provide real-time alerts for open-source vulnerabilities.
Yes, the fix for this vulnerability is available in Node.js version 8.11.3-r0 or later. It is recommended to upgrade to the fixed version.
There are no specific workarounds mentioned for this vulnerability. Upgrading to the fixed version of Node.js is the recommended solution.
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