HighFix available
openvswitch — security advisory
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
- Products
- openvswitch
- Affected versions
- 3.1.0-2
- Fixed versions
- 3.1.0-2+deb12u1, 3.3.0-1
- CVEs
- CVE-2023-3966
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 16:24 UTC · Revision 1
Source evidence
A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.
osv:DEBIAN-CVE-2023-3966
openvswitch
Fixed versions: 3.1.0-2+deb12u1
openvswitch
Fixed versions: 3.3.0-1
openvswitch
Fixed versions: 3.3.0-1
Complete source record
{
"id": "b02f4d5636642621ba2f5fce1a672dc1387123bc18c60333b4a3c3f1a88e0b14",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-3966",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-3966",
"summary": "A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.",
"evidence": "osv:DEBIAN-CVE-2023-3966",
"products": [
{
"name": {
"value": "openvswitch",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.1.0-2+deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "3.1.0-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "openvswitch",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.3.0-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "openvswitch",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.3.0-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-3966",
"aliases": [
"DEBIAN-CVE-2023-3966"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.1.0-2+deb12u1"
}
]
}
],
"package": {
"name": "openvswitch",
"purl": "pkg:deb/debian/openvswitch?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"3.1.0-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3966.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.0-1"
}
]
}
],
"package": {
"name": "openvswitch",
"purl": "pkg:deb/debian/openvswitch?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3966.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.0-1"
}
]
}
],
"package": {
"name": "openvswitch",
"purl": "pkg:deb/debian/openvswitch?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-3966.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:03:06.264055143Z",
"provider": "osv",
"upstream": [
"CVE-2023-3966"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-3966"
]
},
"related_cves": [
{
"value": "CVE-2023-3966",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 457645,
"published_at": "2024-02-22T13:15:07.77+00:00"
}