SUSE-SU-2026:3839-1: important: Security update for wicked

# Security update for wicked

Announcement ID: SUSE-SU-2026:3839-1  
Release Date: 2026-08-27T12:21:01Z  
Rating: important  
References:

  * bsc#1274627

  
Cross-References:

  * CVE-2026-71401
  * CVE-2026-71402

  
CVSS scores:

  * CVE-2026-71401 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-71401 ( NVD ):  5.3
    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
  * CVE-2026-71402 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-71402 ( NVD ):  5.3
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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
  * CVE-2026-71402 ( NVD ):  5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for wicked fixes the following issue:

  * CVE-2026-71401: out-of-bounds read due to IP length underflow in checksum
    handling of DHCPv4 capture parsing (bsc#1274627).
  * CVE-2026-71402: out-of-bounds read due to DHCP option reader being extended
    beyond provided allocation in DHCPv4 capture parsing (bsc#1274627).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-3839=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-3839=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-3839=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-3839=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-3839=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-3839=1

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-service-0.6.79-150500.3.47.1
    * wicked-0.6.79-150500.3.47.1
    * wicked-nbft-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-service-0.6.79-150500.3.47.1
    * wicked-0.6.79-150500.3.47.1
    * wicked-nbft-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * wicked-0.6.79-150500.3.47.1
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1
    * wicked-service-0.6.79-150500.3.47.1
  * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    * wicked-service-0.6.79-150500.3.47.1
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-0.6.79-150500.3.47.1
    * wicked-nbft-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-service-0.6.79-150500.3.47.1
    * wicked-0.6.79-150500.3.47.1
    * wicked-nbft-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * wicked-service-0.6.79-150500.3.47.1
    * wicked-debuginfo-0.6.79-150500.3.47.1
    * wicked-0.6.79-150500.3.47.1
    * wicked-nbft-0.6.79-150500.3.47.1
    * wicked-debugsource-0.6.79-150500.3.47.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-71401.html
  * https://www.suse.com/security/cve/CVE-2026-71402.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1274627