CVE-2025-58056
Gravedad CVSS v4.0:
BAJA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
03/09/2025
Última modificación:
08/09/2025
Descripción
*** Pendiente de traducción *** Netty is an asynchronous event-driven network application framework for development of maintainable high performance protocol servers and clients. In versions 4.1.124.Final, and 4.2.0.Alpha3 through 4.2.4.Final, Netty incorrectly accepts standalone newline characters (LF) as a chunk-size line terminator, regardless of a preceding carriage return (CR), instead of requiring CRLF per HTTP/1.1 standards. When combined with reverse proxies that parse LF differently (treating it as part of the chunk extension), attackers can craft requests that the proxy sees as one request but Netty processes as two, enabling request smuggling attacks. This is fixed in versions 4.1.125.Final and 4.2.5.Final.
Impacto
Puntuación base 4.0
2.90
Gravedad 4.0
BAJA
Puntuación base 3.x
7.50
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* | 4.1.125 (excluyendo) | |
| cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* | 4.2.0 (incluyendo) | 4.2.5 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página
Referencias a soluciones, herramientas e información
- https://datatracker.ietf.org/doc/html/rfc9112#name-chunked-transfer-coding
- https://github.com/JLLeitschuh/unCVEed/issues/1
- https://github.com/netty/netty/commit/edb55fd8e0a3bcbd85881e423464f585183d1284
- https://github.com/netty/netty/issues/15522
- https://github.com/netty/netty/pull/15611
- https://github.com/netty/netty/security/advisories/GHSA-fghv-69vj-qj49
- https://w4ke.info/2025/06/18/funky-chunks.html



