Upstream information
Description
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 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 2.6 |
| Vector | AV:N/AC:H/Au:N/C:N/I:P/A:N |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | Partial |
| Availability Impact | None |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 5.9 | 6.5 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | High | Low |
| Privileges Required | None | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | Low |
| Integrity Impact | High | Low |
| Availability Impact | None | None |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2022:1271-1, published Wed Apr 20 10:27:06 UTC 2022
- openSUSE-SU-2021:0448-1, published Fri Mar 19 18:40:23 2021
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| Container suse/manager/5.0/x86_64/server:5.0.0-beta1.2.122 |
| |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 |
| Patchnames: SUSE Linux Enterprise Module for Package Hub 15 SP5 GA netty-4.1.13-4.3.2 SUSE Linux Enterprise Module for Package Hub 15 SP5 GA netty-4.1.90-150200.4.14.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 |
| Patchnames: SUSE Linux Enterprise Module for Package Hub 15 SP6 GA netty-4.1.108-150200.4.23.1 SUSE Linux Enterprise Module for Package Hub 15 SP6 GA netty-4.1.13-4.3.2 |
| openSUSE Leap 15.2 |
| Patchnames: openSUSE-2021-448 |
| openSUSE Leap 15.3 |
| Patchnames: openSUSE-SLE-15.3-2022-1271 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-11085 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP5 | netty3 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | netty3 | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | netty3 | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | netty3 | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | netty | Released |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | netty | Released |
| SUSE Linux Enterprise Server 15 SP5 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | netty3 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | netty3 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | netty3 | Not affected |
| SUSE Manager Proxy 4.3 | netty3 | Not affected |
| SUSE Manager Retail Branch Server 4.3 | netty3 | Not affected |
| SUSE Manager Server 4.3 | netty3 | Not affected |
| SUSE Manager Server Module 4.3 | netty | Not affected |
| openSUSE Leap 15.5 | netty | Affected |
| openSUSE Leap 15.5 | netty3 | Not affected |
| openSUSE Leap 15.6 | netty | Affected |
| openSUSE Leap 15.6 | netty3 | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | netty3 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | netty3 | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | netty3 | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.5 | netty3 | Not affected |
| SUSE Enterprise Storage 7 | netty3 | Not affected |
| SUSE Enterprise Storage 7.1 | netty3 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | netty3 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | netty3 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | netty3 | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | netty3 | Not affected |
| SUSE Manager Proxy 4.1 | netty3 | Not affected |
| SUSE Manager Proxy 4.2 | netty3 | Not affected |
| SUSE Manager Retail Branch Server 4.1 | netty3 | Not affected |
| SUSE Manager Retail Branch Server 4.2 | netty3 | Not affected |
| SUSE Manager Server 4.1 | netty3 | Not affected |
| SUSE Manager Server 4.2 | netty3 | Not affected |
| SUSE Manager Server Module 4.0 | netty | Unsupported |
| SUSE Manager Server Module 4.1 | netty | Not affected |
| SUSE Manager Server Module 4.2 | netty | Not affected |
| openSUSE Leap 15.3 | netty | Affected |
| openSUSE Leap 15.3 | netty3 | Not affected |
| openSUSE Leap 15.4 | netty | Affected |
| openSUSE Leap 15.4 | netty3 | Not affected |
| Container Status | ||
| suse/manager/5.0/x86_64/server | netty | Released |
SUSE Timeline for this CVE
CVE page created: Wed Mar 10 00:54:16 2021CVE page last modified: Fri Dec 20 23:27:30 2024