SUSE: Openvswitch Important Security Update for DoS Issue 2026:20061-1
suse
January 15, 2026
An update that solves four vulnerabilities can now be installed.
Summary
## This update for openvswitch fixes the following issues: Update OpenvSwitch to v3.1.7 and OVN to v23.03.3: Security issues fixed: * CVE-2023-3966: ovs: invalid memory access and potential denial of service via specially crafted Geneve packets (bsc#1219465). * CVE-2023-5366: ovs: OpenFlow rules may be bypassed via specially crafted ICMPv6 Neighbor Advertisement packets sent between virtual machines t(bsc#1216002). * CVE-2024-2182: ovn: denial of service via injection of specially crafted BFD packets from inside unprivileged workloads (bsc#1255435). * CVE-2025-0650: ovn: egress ACLs may be bypassed via specially crafted UDP packet (bsc#1236353). Other updates and bugfixes: * OpenvSwitch upstream bugfix updates: * https://www.openvswitch.org/releases/NEWS-3.1.7.txt * v3.1.7 * Bug fixes
Topics Covered
References
* bsc#1216002
* bsc#1219465
* bsc#1236353
* bsc#1255435
Cross-
* CVE-2023-3966
* CVE-2023-5366
* CVE-2024-2182
* CVE-2025-0650
CVSS scores:
* CVE-2023-3966 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-3966 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-3966 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-5366 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
* CVE-2023-5366 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2024-2182 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2024-2182 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-0650 ( SUSE ): 9.2
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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Severity
important
Lowest
Low
Medium
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Critical
Announcement ID: SUSE-SU-2026:20061-1
Release Date: 2026-01-08T14:44:35Z
Rating: important
Topics Covered
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