Upstream information

CVE-2021-21409 at MITRE

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 4.1.61.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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.3
Vector AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  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 Bugzilla entry: 1184203 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.3
  • netty >= 4.1.75-150200.4.9.1
  • netty-javadoc >= 4.1.75-150200.4.9.1
  • netty-poms >= 4.1.75-150200.4.9.1
Patchnames:
openSUSE-SLE-15.3-2022-1315


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Enterprise Storage 7 netty3 Not affected
SUSE Enterprise Storage 7.1 netty3 Not affected
SUSE Linux Enterprise Desktop 15 SP4 netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4 netty3 Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 netty3 Not affected
SUSE Linux Enterprise Real Time 15 SP3 netty3 Not affected
SUSE Linux Enterprise Server 15 SP4 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty3 Not affected
SUSE Manager Proxy 4.2 netty3 Not affected
SUSE Manager Proxy 4.3 netty3 Not affected
SUSE Manager Retail Branch Server 4.2 netty3 Not affected
SUSE Manager Retail Branch Server 4.3 netty3 Not affected
SUSE Manager Server 4.2 netty3 Not affected
SUSE Manager Server 4.3 netty3 Not affected
SUSE Manager Server Module 4.2 netty Not affected
SUSE Manager Server Module 4.3 netty Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
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 Module for Development Tools 15 SP2 netty3 Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 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 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
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.5 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 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 Retail Branch Server 4.1 netty3 Not affected
SUSE Manager Server 4.1 netty3 Not affected
SUSE Manager Server Module 4.0 netty Unsupported
SUSE Manager Server Module 4.1 netty Not affected


SUSE Timeline for this CVE

CVE page created: Tue Mar 30 21:48:06 2021
CVE page last modified: Fri Jan 20 15:53:41 2023