Upstream information

CVE-2026-71401 at MITRE

Description

An integer underflow was found in the DHCPv4 packet capture code of wicked. ni_capture_inspect_udp_header() in src/capture.c does not verify that the IP total length field (ip_len) is at least as large as the IP header length (ihl) before subtracting the header length. An unauthenticated attacker on the same network can thereby trigger an out-of-bounds read past the receive buffer in the wicked DHCPv4 client (wickedd-dhcp4), which can crash the daemon depending on the process memory layout. No information disclosure has been demonstrated. This issue affects wicked up to and including version 0.6.80.

SUSE information

Overall state of this security issue: New

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail SUSE
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
CVSS v4 Scores
CVSS detail CNA (SUSE)
Base Score 5.3
Vector CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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
Attack Vector Adjacent Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact Low
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1274627 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-SP6-CHOST-BYOS
Image SLES15-SP6-CHOST-BYOS-Aliyun
Image SLES15-SP6-CHOST-BYOS-Azure
Image SLES15-SP6-CHOST-BYOS-EC2
Image SLES15-SP6-CHOST-BYOS-GCE
Image SLES15-SP6-CHOST-BYOS-GDC
Image SLES15-SP6-CHOST-BYOS-SAP-CCloud
  • wicked >= 0.6.79-150600.11.20.1
  • wicked-service >= 0.6.79-150600.11.20.1
SUSE Linux Enterprise Desktop 15 SP7
SUSE Linux Enterprise High Performance Computing 15 SP7
SUSE Linux Enterprise Module for Basesystem 15 SP7
SUSE Linux Enterprise Server 15 SP7
SUSE Linux Enterprise Server for SAP Applications 15 SP7
  • wicked >= 0.6.79-150700.3.8.1
  • wicked-nbft >= 0.6.79-150700.3.8.1
  • wicked-service >= 0.6.79-150700.3.8.1
 Patchnames:
SUSE-SLE-Module-Basesystem-15-SP7-2026-3841 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3842 (aarch64,x86_64)
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3842 (aarch64,x86_64)
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • wicked >= 0.6.79-150500.3.47.1
  • wicked-nbft >= 0.6.79-150500.3.47.1
  • wicked-service >= 0.6.79-150500.3.47.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3839 (aarch64,x86_64)
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • wicked >= 0.6.79-150500.3.47.1
  • wicked-nbft >= 0.6.79-150500.3.47.1
  • wicked-service >= 0.6.79-150500.3.47.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-3839 (aarch64,x86_64)
SUSE Linux Enterprise Micro 5.3
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Micro-5.3-2026-3842 (aarch64,s390x,x86_64)
SUSE Linux Enterprise Micro 5.4
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Micro-5.4-2026-3842 (aarch64,s390x,x86_64)
SUSE Linux Enterprise Micro 5.5
  • wicked >= 0.6.79-150500.3.47.1
  • wicked-service >= 0.6.79-150500.3.47.1
 Patchnames:
SUSE-SLE-Micro-5.5-2026-3839 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server 12 SP5-LTSS
  • wicked >= 0.6.79-3.61.1
  • wicked-service >= 0.6.79-3.61.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-2026-3837 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server 15 SP4-LTSS
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3842 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server 15 SP5-LTSS
  • wicked >= 0.6.79-150500.3.47.1
  • wicked-nbft >= 0.6.79-150500.3.47.1
  • wicked-service >= 0.6.79-150500.3.47.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3839 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server 15 SP6-LTSS
  • wicked >= 0.6.79-150600.11.20.1
  • wicked-nbft >= 0.6.79-150600.11.20.1
  • wicked-service >= 0.6.79-150600.11.20.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-3840 (aarch64,ppc64le,s390x,x86_64)
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
  • wicked >= 0.6.79-3.61.1
  • wicked-service >= 0.6.79-3.61.1
 Patchnames:
SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3837 (x86_64)
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2026-3842 (ppc64le,x86_64)
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • wicked >= 0.6.79-150500.3.47.1
  • wicked-nbft >= 0.6.79-150500.3.47.1
  • wicked-service >= 0.6.79-150500.3.47.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3839 (ppc64le,x86_64)
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • wicked >= 0.6.79-150600.11.20.1
  • wicked-nbft >= 0.6.79-150600.11.20.1
  • wicked-service >= 0.6.79-150600.11.20.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP6-2026-3840 (ppc64le,x86_64)
SUSE Manager Proxy LTS 4.3
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2026-3842 (x86_64)
SUSE Manager Retail Branch Server LTS 4.3
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-LTS-2026-3842 (x86_64)
SUSE Manager Server LTS 4.3
  • wicked >= 0.6.79-150400.3.44.1
  • wicked-service >= 0.6.79-150400.3.44.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2026-3842 (ppc64le,s390x,x86_64)
openSUSE Leap 16.0
  • wicked >= 0.6.80-bp160.2.1
  • wicked-nbft >= 0.6.80-bp160.2.1
  • wicked-service >= 0.6.80-bp160.2.1
 Patchnames:
openSUSE-Leap-16.0-packagehub-540

First public cloud image revisions this CVE is fixed in:

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.
SLES15-SP5-CHOST-BYOS-SAP-CCloud wicked In progress
SLES15-SP6-CHOST-BYOS wicked Released
SLES15-SP6-CHOST-BYOS-Aliyun wicked Released
SLES15-SP6-CHOST-BYOS-Azure wicked Released
SLES15-SP6-CHOST-BYOS-EC2 wicked Released
SLES15-SP6-CHOST-BYOS-GCE wicked Released
SLES15-SP6-CHOST-BYOS-GDC wicked Released
SLES15-SP6-CHOST-BYOS-SAP-CCloud wicked Released
SLES15-SP7-CHOST-BYOS-Aliyun wicked In progress
SLES15-SP7-CHOST-BYOS-Azure wicked In progress
SLES15-SP7-CHOST-BYOS-EC2 wicked In progress
SLES15-SP7-CHOST-BYOS-GCE wicked In progress
SLES15-SP7-CHOST-BYOS-GDC wicked In progress
SLES15-SP7-CHOST-BYOS-SAP-CCloud wicked In progress
SUSE Linux Enterprise Desktop 15 SP7 wicked Released
SUSE Linux Enterprise High Performance Computing 15 SP7 wicked Released
SUSE Linux Enterprise Micro 5.3 wicked Released
SUSE Linux Enterprise Micro 5.4 wicked Released
SUSE Linux Enterprise Micro 5.5 wicked Released
SUSE Linux Enterprise Micro for Rancher 5.3 wicked Released
SUSE Linux Enterprise Micro for Rancher 5.4 wicked Released
SUSE Linux Enterprise Module for Basesystem 15 SP7 wicked Released
SUSE Linux Enterprise Server 15 SP7 wicked Released
SUSE Linux Enterprise Server for SAP Applications 15 SP7 wicked Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SLES15-SP3-CHOST-BYOS-Aliyun wicked Analysis
SLES15-SP3-CHOST-BYOS-Azure wicked Analysis
SLES15-SP3-CHOST-BYOS-EC2 wicked Analysis
SLES15-SP3-CHOST-BYOS-GCE wicked Analysis
SLES15-SP3-CHOST-BYOS-SAP-CCloud wicked Analysis
SLES15-SP4-CHOST-BYOS wicked In progress
SLES15-SP4-CHOST-BYOS-Aliyun wicked In progress
SLES15-SP4-CHOST-BYOS-Azure wicked In progress
SLES15-SP4-CHOST-BYOS-EC2 wicked In progress
SLES15-SP4-CHOST-BYOS-GCE wicked In progress
SLES15-SP4-CHOST-BYOS-SAP-CCloud wicked In progress
SLES15-SP5-CHOST-BYOS-Aliyun wicked In progress
SLES15-SP5-CHOST-BYOS-Azure wicked In progress
SLES15-SP5-CHOST-BYOS-EC2 wicked In progress
SLES15-SP5-CHOST-BYOS-GCE wicked In progress
SLES15-SP5-CHOST-BYOS-GDC wicked In progress
SUSE Linux Enterprise High Performance Computing 12 SP5 wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS wicked Released
SUSE Linux Enterprise High Performance Computing 15 SP5 wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS wicked Released
SUSE Linux Enterprise Module for Basesystem 15 SP4 wicked Affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 wicked Affected
SUSE Linux Enterprise Module for Basesystem 15 SP6 wicked Affected
SUSE Linux Enterprise Server 12 SP5 wicked Affected
SUSE Linux Enterprise Server 12 SP5-LTSS wicked Released
SUSE Linux Enterprise Server 15 SP4 wicked Affected
SUSE Linux Enterprise Server 15 SP4-LTSS wicked Released
SUSE Linux Enterprise Server 15 SP5 wicked Affected
SUSE Linux Enterprise Server 15 SP5-LTSS wicked Released
SUSE Linux Enterprise Server 15 SP6 wicked Affected
SUSE Linux Enterprise Server 15 SP6-LTSS wicked Released
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 wicked Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 wicked Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 wicked Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 wicked Released
SUSE Manager Proxy 4.3 wicked Affected
SUSE Manager Proxy LTS 4.3 wicked Released
SUSE Manager Retail Branch Server 4.3 wicked Affected
SUSE Manager Retail Branch Server LTS 4.3 wicked Released
SUSE Manager Server 4.3 wicked Affected
SUSE Manager Server LTS 4.3 wicked Released
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 wicked Affected
SUSE CaaS Platform 3.0 wicked Affected
SUSE CaaS Platform 4.0 wicked Affected
SUSE Enterprise Storage 6 wicked Affected
SUSE Enterprise Storage 7 wicked Analysis
SUSE Enterprise Storage 7.1 wicked Analysis
SUSE Linux Enterprise Desktop 12 SP2 wicked Affected
SUSE Linux Enterprise Desktop 12 SP3 wicked Affected
SUSE Linux Enterprise Desktop 15 SP1 wicked Affected
SUSE Linux Enterprise Desktop 15 SP2 wicked Analysis
SUSE Linux Enterprise Desktop 15 SP3 wicked Analysis
SUSE Linux Enterprise Desktop 15 SP4 wicked Affected
SUSE Linux Enterprise Desktop 15 SP5 wicked Affected
SUSE Linux Enterprise Desktop 15 SP6 wicked Affected
SUSE Linux Enterprise High Performance Computing 12 SP2 wicked Affected
SUSE Linux Enterprise High Performance Computing 12 SP3 wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3 wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS wicked Analysis
SUSE Linux Enterprise High Performance Computing 15 SP4 wicked Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS wicked Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS wicked Released
SUSE Linux Enterprise High Performance Computing 15 SP6 wicked Affected
SUSE Linux Enterprise Micro 5.0 wicked Analysis
SUSE Linux Enterprise Micro 5.1 wicked Analysis
SUSE Linux Enterprise Micro 5.2 wicked Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP1 wicked Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 wicked Analysis
SUSE Linux Enterprise Module for Basesystem 15 SP3 wicked Analysis
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT wicked Affected
SUSE Linux Enterprise Real Time 15 SP2 wicked Analysis
SUSE Linux Enterprise Real Time 15 SP3 wicked Analysis
SUSE Linux Enterprise Real Time 15 SP4 wicked Affected
SUSE Linux Enterprise Server 12 SP2 wicked Affected
SUSE Linux Enterprise Server 12 SP2-BCL wicked Affected
SUSE Linux Enterprise Server 12 SP2-ESPOS wicked Affected
SUSE Linux Enterprise Server 12 SP2-LTSS wicked Affected
SUSE Linux Enterprise Server 12 SP3 wicked Affected
SUSE Linux Enterprise Server 12 SP3-BCL wicked Affected
SUSE Linux Enterprise Server 12 SP3-ESPOS wicked Affected
SUSE Linux Enterprise Server 12 SP3-LTSS wicked Affected
SUSE Linux Enterprise Server 15 SP1 wicked Affected
SUSE Linux Enterprise Server 15 SP1-BCL wicked Affected
SUSE Linux Enterprise Server 15 SP1-LTSS wicked Analysis
SUSE Linux Enterprise Server 15 SP2 wicked Analysis
SUSE Linux Enterprise Server 15 SP2-BCL wicked Analysis
SUSE Linux Enterprise Server 15 SP2-LTSS wicked Analysis
SUSE Linux Enterprise Server 15 SP3 wicked Analysis
SUSE Linux Enterprise Server 15 SP3-BCL wicked Analysis
SUSE Linux Enterprise Server 15 SP3-LTSS wicked Analysis
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 wicked Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 wicked Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 wicked Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 wicked Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 wicked Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP3 wicked Analysis
SUSE Manager Proxy 4.0 wicked Affected
SUSE Manager Proxy 4.1 wicked Analysis
SUSE Manager Proxy 4.2 wicked Analysis
SUSE Manager Retail Branch Server 4.0 wicked Affected
SUSE Manager Retail Branch Server 4.1 wicked Analysis
SUSE Manager Retail Branch Server 4.2 wicked Analysis
SUSE Manager Server 4.0 wicked Affected
SUSE Manager Server 4.1 wicked Analysis
SUSE Manager Server 4.2 wicked Analysis
SUSE OpenStack Cloud 7 wicked Affected
SUSE OpenStack Cloud 8 wicked Affected
SUSE OpenStack Cloud Crowbar 8 wicked Affected
openSUSE Leap 15.3 wicked Analysis
openSUSE Leap 15.4 wicked Released
openSUSE Leap 15.5 wicked Released
openSUSE Leap 15.6 wicked Released
openSUSE Leap Micro 5.2 wicked Analysis
openSUSE Leap Micro 5.3 wicked Affected
openSUSE Leap Micro 5.4 wicked Affected
openSUSE Leap Micro 5.5 wicked Affected
Container Status
suse/pcp
suse/sle-micro-rancher/5.2
suse/sles/15.3/libguestfs-tools:0.45.0		 wickedAnalysis
suse/hpc/warewulf4-x86_64/sle-hpc-node
suse/sles/15.4/libguestfs-tools:0.49.0
suse/sles/15.5/libguestfs-tools:0.58.0
suse/sles/15.6/libguestfs-tools:1.1.1
suse/sles/15.7/libguestfs-tools:1.5.0		 wickedIn progress

SUSE Timeline for this CVE

CVE page created: Thu Aug 27 14:09:41 2026
CVE page last modified: Fri Aug 28 13:58:23 2026