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openSUSE openvswitch3 Important Heap Over-Read Vulnern 2026-2476-1

opensuse
Calendar Grey June 22, 2026
Dist Opensuse Esm H88
# Security update for openvswitch3 Announcement ID: SUSE-SU-2026:2476-1 Release Date: 2026-06-22T08:
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).

Topics%20covered

Topics Covered

security advisory important DDoS OpenSUSE heap over-read openvswitch3

Patch

## 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

*...

Read the Full Advisory

References

* bsc#1262498

* bsc#1262499

## 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

Severity
important
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory important DDoS OpenSUSE heap over-read openvswitch3

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