Medium
Security advisory
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-36980
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:37 UTC · Revision 1
Source evidence
Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.
osv:CVE-2021-36980
Complete source record
{
"id": "7963e05b8797c6ee91df714b0a38d5a46c87ba13389416183f70649243eb529f",
"url": "https://osv.dev/vulnerability/CVE-2021-36980",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-36980",
"summary": "Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.",
"evidence": "osv:CVE-2021-36980",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-36980",
"aliases": [
"CVE-2021-36980"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/openvswitch/ovs",
"type": "GIT",
"events": [
{
"introduced": "997f2b583f49d1a52b41958b88acf4f23a49eba6"
},
{
"last_affected": "8dc1733eaea866dce033b3c44853e1b09bf59fc7"
},
{
"fixed": "38744b1bcb022c611712527f039722115300f58f"
},
{
"fixed": "65c61b0c23a0d474696d7b1cea522a5016a8aeb3"
},
{
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{
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}
],
"database_specific": {
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{
"cpe": "cpe:2.3:a:openvswitch:openvswitch:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.11.0"
},
{
"last_affected": "2.15.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
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{
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{
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],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
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}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v2.11.5",
"v2.11.4",
"v2.11.3",
"v2.11.2",
"v2.11.1",
"v2.11.0"
],
"database_specific": {
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"source": "https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3",
"target": {
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"function": "decode_NXAST_RAW_ENCAP"
},
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"signature_type": "Function",
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"target": {
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{
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"target": {
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"target": {
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},
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{
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"target": {
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{
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{
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"function": "decode_NXAST_RAW_ENCAP"
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],
"vanir_signatures_modified": "2026-10-20T14:04:50Z"
}
}
],
"modified": "2026-10-20T14:04:50.700424440Z",
"provider": "osv",
"references": [
"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/openvswitch/OSV-2020-2197.yaml",
"https://security.gentoo.org/glsa/202311-16",
"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27851",
"https://github.com/openvswitch/ovs/commit/38744b1bcb022c611712527f039722115300f58f",
"https://github.com/openvswitch/ovs/commit/65c61b0c23a0d474696d7b1cea522a5016a8aeb3",
"https://github.com/openvswitch/ovs/commit/6d67310f4d2524b466b98f05ebccc1add1e8cf35",
"https://github.com/openvswitch/ovs/commit/77cccc74deede443e8b9102299efc869a52b65b2",
"https://github.com/openvswitch/ovs/commit/8ce8dc34b5f73b30ce0c1869af9947013c3c6575",
"https://github.com/openvswitch/ovs/commit/9926637a80d0d243dbf9c49761046895e9d1a8e2"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-36980",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388538,
"published_at": "2021-07-20T07:15:08.113+00:00"
}