SUSE-SU-2026:1440-1: moderate: Security update for openvswitch3

[SLE-UPDATES]

# Security update for openvswitch3

Announcement ID: SUSE-SU-2026:1440-1  
Release Date: 2026-04-17T13:44:11Z  
Rating: moderate  
References:

  * bsc#1261273

  
Cross-References:

  * CVE-2026-34956

  
CVSS scores:

  * CVE-2026-34956 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-34956 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise Micro 5.5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for openvswitch3 fixes the following issues:

  * CVE-2026-34956: invalid memory access via crafted FTP payloads in userspace
    conntrack flows specifying the FTP alg handler (bsc#1261273).

## 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:

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-1440=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-1440=1

## Package List:

  * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
    * openvswitch3-pki-3.1.7-150500.3.28.1
    * ovn3-host-debuginfo-23.03.3-150500.3.28.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.28.1
    * ovn3-devel-23.03.3-150500.3.28.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.28.1
    * openvswitch3-ipsec-3.1.7-150500.3.28.1
    * ovn3-23.03.3-150500.3.28.1
    * python3-ovs3-3.1.7-150500.3.28.1
    * openvswitch3-debuginfo-3.1.7-150500.3.28.1
    * ovn3-central-debuginfo-23.03.3-150500.3.28.1
    * openvswitch3-test-3.1.7-150500.3.28.1
    * ovn3-central-23.03.3-150500.3.28.1
    * openvswitch3-3.1.7-150500.3.28.1
    * openvswitch3-debugsource-3.1.7-150500.3.28.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.28.1
    * ovn3-vtep-23.03.3-150500.3.28.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.28.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.28.1
    * openvswitch3-devel-3.1.7-150500.3.28.1
    * openvswitch3-vtep-3.1.7-150500.3.28.1
    * ovn3-docker-23.03.3-150500.3.28.1
    * libovn-23_03-0-23.03.3-150500.3.28.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.28.1
    * ovn3-host-23.03.3-150500.3.28.1
    * ovn3-debuginfo-23.03.3-150500.3.28.1
  * openSUSE Leap 15.5 (noarch)
    * ovn3-doc-23.03.3-150500.3.28.1
    * openvswitch3-doc-3.1.7-150500.3.28.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * openvswitch3-debuginfo-3.1.7-150500.3.28.1
    * ovn3-central-debuginfo-23.03.3-150500.3.28.1
    * openvswitch3-pki-3.1.7-150500.3.28.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.28.1
    * ovn3-debuginfo-23.03.3-150500.3.28.1
    * ovn3-docker-23.03.3-150500.3.28.1
    * libovn-23_03-0-23.03.3-150500.3.28.1
    * ovn3-vtep-23.03.3-150500.3.28.1
    * python3-ovs3-3.1.7-150500.3.28.1
    * ovn3-host-debuginfo-23.03.3-150500.3.28.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.28.1
    * ovn3-central-23.03.3-150500.3.28.1
    * ovn3-host-23.03.3-150500.3.28.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.28.1
    * openvswitch3-3.1.7-150500.3.28.1
    * openvswitch3-debugsource-3.1.7-150500.3.28.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.28.1
    * openvswitch3-vtep-3.1.7-150500.3.28.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.28.1
    * ovn3-23.03.3-150500.3.28.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-34956.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261273

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