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Critical Remote Access Denial of Service in openSUSE 15.5 openvswitch3

suse
Calendar Grey January 26, 2026
Dist Suse Esm H88
SUSE releases important update for openvswitch3 addressing seven critical vulnerabilities including denial of service.
An update that solves seven vulnerabilities can now be installed.

Summary

## This update for openvswitch3 fixes the following issues: Update to v3.1.7: * CVE-2023-3966: openvswitch, openvswitch3: Invalid memory access in Geneve with HW offload (bsc#1219465). * CVE-2024-2182: openvswitch: ov: insufficient validation of incoming BFD packets may lead to denial of service (bsc#1255435). * CVE-2023-1668: openvswitch: remote traffic denial of service via crafted packets with IP proto 0 (bsc#1210054). * CVE-2023-3153: openvswitch,openvswitch3: service monitor MAC flow is not rate limited (bsc#1212125). * CVE-2023-5366: openvswitch: missing masks on a final stage with ports trie (bsc#1216002). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory denial of service SuSE remote access important openvswitch3

References

* bsc#1210054

* bsc#1212125

* bsc#1216002

* bsc#1219465

* bsc#1255435

Cross-

* CVE-2023-1668

* CVE-2023-3152

* CVE-2023-3153

* CVE-2023-3966

* CVE-2023-5366

* CVE-2024-2182

* CVE-2025-0650

CVSS scores:

* CVE-2023-1668 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

* CVE-2023-1668 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2023-1668 ( NVD ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2023-3152 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-3152 ( NVD ): 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

* CVE-2023-3152 ( NVD ): 6.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

* CVE-2023-3153 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0290-1
Release Date: 2026-01-26T10:34:27Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE remote access important openvswitch3

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