HIGH 7.5 Microsoft PoC

CVE-2024-22019

A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with chunked encoding leading to resource exhaustion and denial of service (DoS). The server reads an unbounded number of bytes from a single connection exploiting the lack of limitations on chunk extension bytes. The issue can cause CPU and network bandwidth exhaustion bypassing standard safeguards like timeouts and body size limits.

Microsoft Security Update 2024-Feb: A vulnerability in Node.js HTTP servers allows an attacker to send a specially crafted HTTP request with chunked encoding leading to resource exhaustion and denial of service (DoS). The server reads an unbounded number of bytes from a single connection exploiting the lack of limitations on chunk extension bytes. The issue can cause CPU and network bandwidth exhaustion bypassing standard safeguards like timeouts and body size limits.

Affected Products

References

Published: 2024-02-13 · Source: Microsoft · Feed updated: 2026-09-24
This high severity vulnerability with a CVSS score of 7.5 was published on 2024-02-13 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. Affected: cbl2 nodejs18 18.20.2-1 on CBL Mariner 2.0, azl3 nodejs 20.14.0-1 on Azure Linux 3.0, azl3 nodejs 20.10.0-2 on Azure Linux 3.0 and 2 more.
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