CVE-2020-8251 Denial of service in Node

What is CVE-2020-8251?

CVE-2020-8251 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 18 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Node.js < 14.11.0 is vulnerable to HTTP denial of service (DoS) attacks based on delayed requests submission which can make the server unable to accept new connections.

Weakness: CWE-400

Which versions are affected by CVE-2020-8251?

2 open source packages ship an affected version, including node and node-min. It affects 2 products.

Products include Fedoraproject Fedora, Nodejs Node.js.

How do I fix CVE-2020-8251?

Upgrade node to 14.11.0 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-8251 being exploited?

There is no known exploitation of CVE-2020-8251 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-node-2020-8251, BIT-node-min-2020-8251, GHSA-9cwr-72m4-73jq.