Upstream information

CVE-2025-55163 at MITRE

Description

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.124.Final and 4.2.4.Final, Netty is vulnerable to MadeYouReset DDoS. This is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. This issue has been patched in versions 4.1.124.Final and 4.2.4.Final.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
  CNA (GitHub) SUSE
Base Score 8.2 8.7
Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Attack Vector Network Network
Attack Complexity Low Low
Attack Requirements Present None
Privileges Required None None
User Interaction None None
Vulnerable System Confidentiality Impact None None
Vulnerable System Integrity Impact None None
Vulnerable System Availability Impact High High
Subsequent System Confidentiality Impact None None
Subsequent System Integrity Impact None None
Subsequent System Availability Impact None None
CVSSv4 Version 4.0 4.0
SUSE Bugzilla entries: 1243888 [NEW], 1244252 [RESOLVED / FIXED], 1247991 [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
SUSE Manager Server LTS 4.3
  • netty >= 4.1.44.Final-150400.3.9.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2025-3021
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 >= 4.1.124-1.1
  • netty-bom >= 4.1.124-1.1
  • netty-javadoc >= 4.1.124-1.1
  • netty-parent >= 4.1.124-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15483

List of packages in QA

Product(s) Package(s)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • netty-tcnative >= 2.0.72-150200.3.28.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • netty-tcnative >= 2.0.72-150200.3.28.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • netty-tcnative >= 2.0.72-150200.3.28.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • netty-tcnative >= 2.0.72-150200.3.28.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • netty-tcnative >= 2.0.72-150200.3.28.1

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 Linux Enterprise Desktop 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Desktop 15 SP6 netty3 Affected
SUSE Linux Enterprise Desktop 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Desktop 15 SP7 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP6 netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP6 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP7 netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP7 netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Module for Development Tools 15 SP6 netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Module for Development Tools 15 SP7 netty3 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 Affected
SUSE Linux Enterprise Server 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Server 15 SP7 netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP6 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP7 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP7 netty3 Affected
SUSE Manager Server Module 4.3 netty Affected
openSUSE Leap 15.6 netty Released
openSUSE Leap 15.6 netty3 Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS netty-tcnative In progress
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS netty-tcnative Released
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 netty3 Affected
SUSE Linux Enterprise Server 15 SP3 netty3 Affected
SUSE Linux Enterprise Server 15 SP3-LTSS netty-tcnative Released
SUSE Linux Enterprise Server 15 SP3-LTSS netty3 Affected
SUSE Linux Enterprise Server 15 SP4 netty3 Affected
SUSE Linux Enterprise Server 15 SP4-LTSS netty-tcnative In progress
SUSE Linux Enterprise Server 15 SP4-LTSS netty3 Affected
SUSE Linux Enterprise Server 15 SP5 netty3 Affected
SUSE Linux Enterprise Server 15 SP5-LTSS netty-tcnative Released
SUSE Linux Enterprise Server 15 SP5-LTSS netty3 Affected
SUSE Manager Proxy 4.3 netty3 Affected
SUSE Manager Retail Branch Server 4.3 netty3 Affected
SUSE Manager Server 4.3 netty3 Affected
SUSE Manager Server LTS 4.3 netty Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 netty3 Affected
SUSE Enterprise Storage 7.1 netty-tcnative Released
SUSE Enterprise Storage 7.1 netty3 Affected
SUSE Linux Enterprise Desktop 15 SP2 netty3 Affected
SUSE Linux Enterprise Desktop 15 SP3 netty3 Affected
SUSE Linux Enterprise Desktop 15 SP4 netty3 Affected
SUSE Linux Enterprise Desktop 15 SP5 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS netty3 Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS netty-tcnative In progress
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS netty3 Affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 netty3 Affected
SUSE Linux Enterprise Real Time 15 SP2 netty3 Affected
SUSE Linux Enterprise Real Time 15 SP3 netty3 Affected
SUSE Linux Enterprise Real Time 15 SP4 netty3 Affected
SUSE Linux Enterprise Server 15 SP2 netty3 Affected
SUSE Linux Enterprise Server 15 SP2-BCL netty3 Affected
SUSE Linux Enterprise Server 15 SP2-LTSS netty3 Affected
SUSE Linux Enterprise Server 15 SP3-BCL netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty-tcnative In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 netty3 Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 netty-tcnative Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 netty3 Affected
SUSE Manager Proxy 4.1 netty3 Affected
SUSE Manager Proxy 4.2 netty3 Affected
SUSE Manager Retail Branch Server 4.1 netty3 Affected
SUSE Manager Retail Branch Server 4.2 netty3 Affected
SUSE Manager Server 4.1 netty3 Affected
SUSE Manager Server 4.2 netty3 Affected
openSUSE Leap 15.3 netty Affected
openSUSE Leap 15.3 netty3 Affected
openSUSE Leap 15.4 netty Affected
openSUSE Leap 15.4 netty3 Affected
openSUSE Leap 15.5 netty Affected
openSUSE Leap 15.5 netty3 Affected
Products at an unknown state of their lifecycle.
SUSE Manager Server 4.3 LTS netty Released

SUSE Timeline for this CVE

CVE page created: Sat May 31 19:00:13 2025
CVE page last modified: Sun Sep 28 18:11:24 2025