Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3268-1 | netty security update |
Debian DSA |
DSA-5316-1 | netty security update |
EUVD |
EUVD-2021-2607 | Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final. |
Github GHSA |
GHSA-wx5j-54mm-rqqq | HTTP request smuggling in netty |
Ubuntu USN |
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: 2024-08-04T04:03:08.898Z
Reserved: 2021-11-16T00:00:00
Link: CVE-2021-43797
No data.
Status : Modified
Published: 2021-12-09T19:15:07.960
Modified: 2024-11-21T06:29:48.490
Link: CVE-2021-43797
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Github GHSA
Ubuntu USN