Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, Netty incorrectly parses quoted strings in HTTP/1.1 chunked transfer encoding extension values, enabling request smuggling attacks. Versions 4.1.132.Final and 4.2.10.Final fix the issue.
Weakness
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Netty | Netty | * | 4.1.132 (excluding) |
| Netty | Netty | 4.2.0 (including) | 4.2.10 (excluding) |
| Cryostat 4 on RHEL 9 | RedHat | cryostat/cryostat-reports-rhel9:4.2.0-9 | * |
| Cryostat 4 on RHEL 9 | RedHat | cryostat/cryostat-rhel9:4.2.0-9 | * |
| Cryostat 4 on RHEL 9 | RedHat | cryostat/jfr-datasource-rhel9:4.2.0-9 | * |
| Red Hat AMQ Broker 7.12.7 | RedHat | netty-codec-http | * |
| Red Hat AMQ Broker 7.13.5 | RedHat | netty-codec-http | * |
| Red Hat AMQ Broker 7.14.0 | RedHat | netty-codec-http | * |
| Red Hat Build of Apache Camel 4.14 for Quarkus 3.27 | RedHat | netty-codec-http | * |
| Red Hat build of Apache Camel 4.18.1 for Spring Boot 3.5.14 | RedHat | netty-codec-http | * |
| Red Hat build of Quarkus 3.20.6 | RedHat | netty-codec-http | * |
| Red Hat build of Quarkus 3.27.3 | RedHat | netty-codec-http | * |
| Red Hat Data Grid 8.6.1 | RedHat | netty-codec-http | * |
| Red Hat JBoss Enterprise Application Platform 8.1 | RedHat | netty-codec-http | * |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | RedHat | eap8-netty-0:4.1.132-1.Final_redhat_00001.1.el8eap | * |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | RedHat | eap8-netty-transport-native-epoll-0:4.1.132-1.Final_redhat_00001.1.el8eap | * |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | RedHat | eap8-netty-0:4.1.132-1.Final_redhat_00001.1.el9eap | * |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | RedHat | eap8-netty-transport-native-epoll-0:4.1.132-1.Final_redhat_00001.1.el9eap | * |
| Streams for Apache Kafka 3.2.0 | RedHat | * | |
| Red Hat OpenShift AI 2.25 | RedHat | rhoai/odh-modelmesh-rhel9:1776756834 | * |
| Red Hat OpenShift Dev Spaces 3.27 | RedHat | devspaces/openvsx-rhel9:1776716842 | * |
| Red Hat OpenShift Dev Spaces 3.27 | RedHat | devspaces/pluginregistry-rhel9:1776717247 | * |
| Red Hat OpenShift Dev Spaces 3.27 | RedHat | devspaces/server-rhel9:1776796445 | * |
| Netty | Ubuntu | esm-apps/xenial | * |
Extended Description
HTTP requests or responses (“messages”) can be malformed or unexpected in ways that cause web servers or clients to interpret the messages in different ways than intermediary HTTP agents such as load balancers, reverse proxies, web caching proxies, application firewalls, etc. For example, an adversary may be able to add duplicate or different header fields that a client or server might interpret as one set of messages, whereas the intermediary might interpret the same sequence of bytes as a different set of messages. For example, discrepancies can arise in how to handle duplicate headers like two Transfer-encoding (TE) or two Content-length (CL), or the malicious HTTP message will have different headers for TE and CL. The inconsistent parsing and interpretation of messages can allow the adversary to “smuggle” a message to the client/server without the intermediary being aware of it. This weakness is usually the result of the usage of outdated or incompatible HTTP protocol versions in the HTTP agents.