Upstream information

CVE-2021-43797 at MITRE

Description

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.

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 6.5 6.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction Required Required
Scope Unchanged Changed
Confidentiality Impact None Low
Integrity Impact High Low
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1193672 [RESOLVED / INVALID]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise Desktop 15 SP3
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Development Tools 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
  • netty3 >= 3.10.6-150200.3.3.2
Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP3-2022-2047
SUSE Linux Enterprise Desktop 15 SP4
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Development Tools 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • netty3 >= 3.10.6-150200.3.3.2
Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP4-2022-2047
openSUSE Leap 15.3
  • netty >= 4.1.75-150200.4.6.2
  • netty-javadoc >= 4.1.75-150200.4.6.2
  • netty-poms >= 4.1.75-150200.4.6.2
  • netty3 >= 3.10.6-150200.3.3.2
  • netty3-javadoc >= 3.10.6-150200.3.3.2
Patchnames:
openSUSE-SLE-15.3-2022-1271
openSUSE-SLE-15.3-2022-2047
openSUSE Leap 15.4
  • netty3 >= 3.10.6-150200.3.3.2
  • netty3-javadoc >= 3.10.6-150200.3.3.2
Patchnames:
openSUSE-SLE-15.4-2022-2047
openSUSE Tumbleweed
  • netty >= 4.1.72-1.1
  • netty-javadoc >= 4.1.72-1.1
  • netty-poms >= 4.1.72-1.1
  • netty3 >= 3.10.6-9.1
  • netty3-javadoc >= 3.10.6-9.1
Patchnames:
openSUSE Tumbleweed GA netty-4.1.72-1.1
openSUSE Tumbleweed GA netty3-3.10.6-9.1


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 Released
SUSE Enterprise Storage 7.1 netty3 Released
SUSE Linux Enterprise Desktop 15 SP4 netty3 Released
SUSE Linux Enterprise High Performance Computing 15 SP4 netty3 Released
SUSE Linux Enterprise Module for Development Tools 15 SP4 netty3 Released
SUSE Linux Enterprise Real Time 15 SP3 netty3 Affected
SUSE Linux Enterprise Server 15 SP4 netty3 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty3 Released
SUSE Manager Proxy 4.2 netty3 Released
SUSE Manager Proxy 4.3 netty3 Released
SUSE Manager Retail Branch Server 4.2 netty3 Released
SUSE Manager Retail Branch Server 4.3 netty3 Released
SUSE Manager Server 4.2 netty3 Released
SUSE Manager Server 4.3 netty3 Released
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 Released
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS netty3 Released
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS netty3 Released
SUSE Linux Enterprise High Performance Computing 15 SP3 netty3 Released
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 netty3 Released
SUSE Linux Enterprise Module for Development Tools 15 SP3 netty3 Released
SUSE Linux Enterprise Server 15 SP2 netty3 Released
SUSE Linux Enterprise Server 15 SP2-LTSS netty3 Released
SUSE Linux Enterprise Server 15 SP3 netty3 Released
SUSE Linux Enterprise Server 15 SP3-LTSS netty3 Affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 netty3 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP2 netty3 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty3 Released
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.5 netty3 Released
SUSE Linux Enterprise Desktop 15 SP2 netty3 Released
SUSE Linux Enterprise Desktop 15 SP3 netty3 Released
SUSE Linux Enterprise Real Time 15 SP2 netty3 Released
SUSE Linux Enterprise Server 15 SP2-BCL netty3 Affected
SUSE Linux Enterprise Server 15 SP3-BCL netty3 Affected
SUSE Manager Proxy 4.1 netty3 Released
SUSE Manager Retail Branch Server 4.1 netty3 Released
SUSE Manager Server 4.1 netty3 Released
SUSE Manager Server Module 4.1 netty Not affected


SUSE Timeline for this CVE

CVE page created: Fri Dec 10 01:00:31 2021
CVE page last modified: Fri Jan 20 16:11:33 2023