Vulnerability identifier: #VU88175

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-27983

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

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

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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

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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.