High
Security advisory
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-27827
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:08 UTC · Revision 1
Source evidence
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
osv:CVE-2020-27827
Complete source record
{
"id": "83e8992d760129a419818a8f00f814fd7c22cba450bc108ac0dfc3ab4104a9ce",
"url": "https://osv.dev/vulnerability/CVE-2020-27827",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-27827",
"summary": "A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.",
"evidence": "osv:CVE-2020-27827",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-27827",
"aliases": [
"CVE-2020-27827"
],
"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": [
{
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{
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"type": "GIT",
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},
{
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"0.7.14",
"0.7.13",
"0.7.12",
"0.7.11",
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"0.3.1",
"0.3",
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],
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},
{
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{
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{
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{
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{
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{
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},
{
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},
{
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{
"fixed": "9eb440e681ac354654517b204b86eec4eb282037"
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{
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{
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{
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{
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],
"database_specific": {
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{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
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},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
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{
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],
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},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
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},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
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},
{
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],
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},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
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},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
{
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},
{
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}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
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},
{
"fixed": "2.12.2"
}
],
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},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
{
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},
{
"fixed": "2.13.2"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.14.0"
},
{
"fixed": "2.14.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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"v2.13.1",
"v2.12.1",
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"v2.6.7",
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"v2.10.3",
"v2.9.6",
"v2.6.6",
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],
"database_specific": {
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}
}
],
"modified": "2026-10-24T10:30:35.788824699Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3T5XHPOGIPWCRRPJUE6P3HVC5PTSD5JS/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYA4AMJXCNF6UPFG36L2TPPT32C242SP/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKQWHG2SZJZSGC7PXVDAEJYBN7ESDR7D/",
"https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379471.html",
"https://security.gentoo.org/glsa/202311-16",
"https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07",
"https://bugzilla.redhat.com/show_bug.cgi?id=1921438",
"https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf"
],
"provider_metadata": {
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{
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],
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],
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},
{
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{
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},
{
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},
{
"cpes": [
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],
"vendor_product": "redhat:enterprise_linux",
"extracted_events": [
{
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{
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{
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{
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],
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]
},
{
"cpes": [
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],
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{
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},
{
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{
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{
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{
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],
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},
{
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],
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{
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{
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},
"related_cves": [
{
"value": "CVE-2020-27827",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433825,
"published_at": "2021-03-18T17:15:13.51+00:00"
}