Asymmetric denial of service In nodejs
Description
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.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Component | Affected version | Patched versions |
|---|---|---|---|
debian 11 | 12.22.12~dfsg-1~deb11u5 | ||
debian 12 | 18.20.4+dfsg-1~deb12u1 | ||
debian 13 | 18.19.1+dfsg-1 | ||
debian 14 | 18.19.1+dfsg-1 | ||
rpm rhel9 | 1:16.20.2-4.el9_3 | ||
rpm rhel8 | 1:16.20.2-4.module+el8.9.0+21536+8fdee1fb | ||
rpm rhel8.6 | 1:16.20.2-4.module+el8.6.0+21547+94389150 | ||
rpm rhel8.8 | 1:16.20.2-4.module+el8.8.0+21546+ecd4bb56 | ||
rpm rhel9.0 | 1:16.20.2-4.el9_0 | ||
rpm rhel9.2 | 1:16.20.2-4.el9_2 |
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Aliases
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References
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