SUSE alert SUSE-SU-2026:2476-1 (openvswitch3)

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OPENSUSE-SECURITY-UPDATES <null@suse.de>
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security-announce@lists.opensuse.org
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SUSE-SU-2026:2476-1: important: Security update for openvswitch3
Date:
             
 
Mon, 22 Jun 2026 16:34:19 -0000
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<178214605973.43.13631027257849255096@41cefdcbd46a>
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Article
# Security update for openvswitch3

Announcement ID: SUSE-SU-2026:2476-1  
Release Date: 2026-06-22T08:24:24Z  
Rating: important  
References:

  * bsc#1262498
  * bsc#1262499

  
Cross-References:

  * CVE-2026-5265
  * CVE-2026-5367

  
CVSS scores:

  * CVE-2026-5265 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-5265 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-5367 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-5367 ( NVD ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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 openvswitch3 fixes the following issues

  * CVE-2026-5265: heap over-read in ICMP error response generation
    (bsc#1262498).
  * CVE-2026-5367: heap over-read in OVN DHCPv6 client ID processing
    (bsc#1262499).

## 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-2026-2476=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-2476=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-2476=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2476=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2476=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2476=1

## Package List:

  * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * openvswitch3-devel-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * openvswitch3-test-3.1.7-150500.3.31.1
    * openvswitch3-ipsec-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-devel-23.03.3-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1
  * openSUSE Leap 15.5 (noarch)
    * ovn3-doc-23.03.3-150500.3.31.1
    * openvswitch3-doc-3.1.7-150500.3.31.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * openvswitch3-devel-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * openvswitch3-test-3.1.7-150500.3.31.1
    * openvswitch3-ipsec-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-devel-23.03.3-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * openvswitch3-devel-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * openvswitch3-test-3.1.7-150500.3.31.1
    * openvswitch3-ipsec-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-devel-23.03.3-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * openvswitch3-devel-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * openvswitch3-ipsec-3.1.7-150500.3.31.1
    * openvswitch3-test-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-devel-23.03.3-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * ovn3-debuginfo-23.03.3-150500.3.31.1
    * libovn-23_03-0-23.03.3-150500.3.31.1
    * ovn3-host-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-3.1.7-150500.3.31.1
    * ovn3-vtep-23.03.3-150500.3.31.1
    * openvswitch3-3.1.7-150500.3.31.1
    * openvswitch3-test-debuginfo-3.1.7-150500.3.31.1
    * python3-ovs3-3.1.7-150500.3.31.1
    * libopenvswitch-3_1-0-3.1.7-150500.3.31.1
    * openvswitch3-devel-3.1.7-150500.3.31.1
    * openvswitch3-debuginfo-3.1.7-150500.3.31.1
    * ovn3-central-23.03.3-150500.3.31.1
    * ovn3-docker-23.03.3-150500.3.31.1
    * libopenvswitch-3_1-0-debuginfo-3.1.7-150500.3.31.1
    * libovn-23_03-0-debuginfo-23.03.3-150500.3.31.1
    * ovn3-23.03.3-150500.3.31.1
    * ovn3-host-23.03.3-150500.3.31.1
    * openvswitch3-pki-3.1.7-150500.3.31.1
    * openvswitch3-debugsource-3.1.7-150500.3.31.1
    * openvswitch3-ipsec-3.1.7-150500.3.31.1
    * openvswitch3-test-3.1.7-150500.3.31.1
    * ovn3-central-debuginfo-23.03.3-150500.3.31.1
    * openvswitch3-vtep-debuginfo-3.1.7-150500.3.31.1
    * ovn3-devel-23.03.3-150500.3.31.1
    * ovn3-vtep-debuginfo-23.03.3-150500.3.31.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-5265.html
  * https://www.suse.com/security/cve/CVE-2026-5367.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262498
  * https://bugzilla.suse.com/show_bug.cgi?id=1262499



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