Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
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DSA-4885-1 | netty security update |
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EUVD-2021-0647 | Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final. |
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GHSA-f256-j965-7f32 | Possible request smuggling in HTTP/2 due missing validation of content-length |
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USN-6049-1 | Netty vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-03T18:09:16.144Z
Reserved: 2020-12-22T00:00:00
Link: CVE-2021-21409

No data.

Status : Modified
Published: 2021-03-30T15:15:14.573
Modified: 2024-11-21T05:48:17.963
Link: CVE-2021-21409


No data.