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SUSE Openvswitch Important Heap Over-read Fix 2026-22145-1

suse
Calendar Grey June 18, 2026
Dist Suse Esm H88
Update for openvswitch resolves important issues, enhancing security against vulnerabilities and improving performance.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for openvswitch 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). * CVE-2026-34956: Invalid memory access in conntrack FTP alg (bsc#1261273). Changes for openvswitch: * Update ovn to 25.03.3 * Bug fixes * Add support for special port_security prefix "VRRPv3". This prefix allows CMS to allow all required traffic for a VRRPv3 virtual router behind LSP. See ovn-nb(5) man page for more details. * Fixed support for fragmented traffic in the userspace datapath. Added the "acl_ct_translation" NB_Global option to enable connection tracking based L4 field translation for stateful ACLs. When enabled allows proper handling of

Topics%20covered

Topics Covered

security advisory SuSE important heap over-read openvswitch invalid memory access

References

* bsc#1261273

* bsc#1262498

* bsc#1262499

Cross-

* CVE-2026-34956

* CVE-2026-5265

* CVE-2026-5367

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

* CVE-2026-34956 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

* 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:

* SUSE Linux Micro 6.2

An update that solves three vulnerabilities can now be installed.

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22145-1
Release Date: 2026-06-17T08:39:16Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE important heap over-read openvswitch invalid memory access

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