Vulnerability identifier: #VU88175

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2024-27983

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when handling HTTP/2 packets. A remote attacker can send a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Node.js: 21.7.0 - 21.7.1, 21.6.0 - 21.6.2, 21.5.0, 21.4.0, 20.12.0, 20.11.0 - 20.11.1, 18.20.0, 18.19.0 - 18.19.1, 18.1.0 - 18.18.2, 18.4.0, 18.3.0, 18.2.0, 18.0.0

---

External links
http://nodejs.org/en/blog/vulnerability/april-2024-security-releases
http://github.com/nodejs/node/releases/tag/v21.7.2
http://github.com/nodejs/node/releases/tag/v20.12.1
http://github.com/nodejs/node/releases/tag/v18.20.1

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.