Upstream information

CVE-2025-58056 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
CVSSv3 Version 3.1
CVSS v4 Scores
  CNA (GitHub)
Base Score 2.9
Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Attack Requirements Present
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact Low
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1249116 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-Storage-7.1-2025-3114
SUSE Linux Enterprise Desktop 15 SP6
SUSE Linux Enterprise High Performance Computing 15 SP6
SUSE Linux Enterprise Module for Development Tools 15 SP6
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP6-2025-3114
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise High Performance Computing 15 SP7
SUSE Linux Enterprise Module for Development Tools 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP7-2025-3114
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-3114
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-3114
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-3114
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-3114
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-3114
SUSE Linux Enterprise Module for Package Hub 15 SP6
  • netty >= 4.1.126-150200.4.34.1
  • netty-javadoc >= 4.1.126-150200.4.34.1
 Patchnames:
SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2025-3114
SUSE Linux Enterprise Module for Package Hub 15 SP7
  • netty >= 4.1.126-150200.4.34.1
  • netty-javadoc >= 4.1.126-150200.4.34.1
 Patchnames:
SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2025-3114
SUSE Linux Enterprise Server 15 SP3-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-3114
SUSE Linux Enterprise Server 15 SP4-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-3114
SUSE Linux Enterprise Server 15 SP5-LTSS
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-3114
SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP3-2025-3114
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2025-3114
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • netty-tcnative >= 2.0.73-150200.3.30.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2025-3114
openSUSE Leap 15.6
  • netty >= 4.1.126-150200.4.34.1
  • netty-javadoc >= 4.1.126-150200.4.34.1
  • netty-tcnative >= 2.0.73-150200.3.30.1
  • netty-tcnative-javadoc >= 2.0.73-150200.3.30.1
 Patchnames:
openSUSE-SLE-15.6-2025-3114
openSUSE Tumbleweed
  • netty >= 4.1.126-1.1
  • netty-bom >= 4.1.126-1.1
  • netty-javadoc >= 4.1.126-1.1
  • netty-parent >= 4.1.126-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15520

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 SP6 netty-tcnative Released
SUSE Linux Enterprise Desktop 15 SP6 netty3 Not affected
SUSE Linux Enterprise Desktop 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Desktop 15 SP7 netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP6 netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP6 netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP7 netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP7 netty3 Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Module for Development Tools 15 SP6 netty3 Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Module for Development Tools 15 SP7 netty3 Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 netty Affected
SUSE Linux Enterprise Module for Package Hub 15 SP6 netty Released
SUSE Linux Enterprise Module for Package Hub 15 SP7 netty Released
SUSE Linux Enterprise Server 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Server 15 SP6 netty3 Not affected
SUSE Linux Enterprise Server 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Server 15 SP7 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP7 netty3 Not affected
SUSE Manager Server Module 4.3 netty Not affected
openSUSE Leap 15.6 netty Released
openSUSE Leap 15.6 netty3 Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
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 netty-tcnative Released
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-LTSS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty3 Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS 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 Module for Development Tools 15 SP5 netty3 Not affected
SUSE Linux Enterprise Server 15 SP3 netty3 Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS netty-tcnative Released
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 netty-tcnative Released
SUSE Linux Enterprise Server 15 SP4-LTSS netty3 Not affected
SUSE Linux Enterprise Server 15 SP5 netty3 Not affected
SUSE Linux Enterprise Server 15 SP5-LTSS netty-tcnative Released
SUSE Linux Enterprise Server 15 SP5-LTSS 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 LTS 4.3 netty Not affected
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 netty3 Not affected
SUSE Enterprise Storage 7.1 netty-tcnative Released
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 Desktop 15 SP4 netty3 Not affected
SUSE Linux Enterprise Desktop 15 SP5 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 SP4-ESPOS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS netty3 Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 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 netty3 Not affected
SUSE Linux Enterprise Server 15 SP2-BCL netty3 Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS netty3 Not affected
SUSE Linux Enterprise Server 15 SP3-BCL netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty3 Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 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
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
openSUSE Leap 15.5 netty Affected
openSUSE Leap 15.5 netty3 Not affected
Container Status
suse/manager/5.0/x86_64/server
suse/multi-linux-manager/5.1/x86_64/server		 nettyIn progress

SUSE Timeline for this CVE

CVE page created: Thu Sep 4 00:00:30 2025
CVE page last modified: Tue Sep 9 18:27:57 2025