UnratedFix available
libvirt: Fix of 2 CVEs
Type: advisorySources: OSV
- CVE-2021-3631: Fix insecure sVirt label generation (single-category MCS labels) in virSecuritySELinuxMCSFind() - CVE-2021-3975: Fix use-after-free due to missing monitor lock in qemuProcessHandleMonitorEOF() - CVE-2022-0897: Fix missing locking in nwfilterConnectNumOfNWFilters() (DoS) - CVE-2024-1441: Fix off-by-one error in udevListInterfacesByStatus() - Fix udev device reference leak on NULL interface names in udevListInterfacesByStatus() and udevConnectListAllInterfaces()
- Products
- libvirt, libvirt-admin, libvirt-bash-completion, libvirt-client, libvirt-daemon, libvirt-daemon-config-network, libvirt-daemon-config-nwfilter, libvirt-daemon-driver-interface, libvirt-daemon-driver-lxc, libvirt-daemon-driver-network, libvirt-daemon-driver-nodedev, libvirt-daemon-driver-nwfilter, libvirt-daemon-driver-qemu, libvirt-daemon-driver-secret, libvirt-daemon-driver-storage, libvirt-daemon-driver-storage-core, libvirt-daemon-driver-storage-disk, libvirt-daemon-driver-storage-gluster, libvirt-daemon-driver-storage-iscsi, libvirt-daemon-driver-storage-logical, libvirt-daemon-driver-storage-mpath, libvirt-daemon-driver-storage-rbd, libvirt-daemon-driver-storage-scsi, libvirt-daemon-kvm, libvirt-daemon-lxc, libvirt-devel, libvirt-docs, libvirt-libs, libvirt-lock-sanlock, libvirt-login-shell, libvirt-nss
- Affected versions
- Not specified
- Fixed versions
- 4.5.0-36.el7_9.5.tuxcare.els2
- CVEs
- CVE-2021-3631, CVE-2021-3975, CVE-2022-0897, CVE-2024-1441
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:10 UTC · Revision 1
Source evidence
- CVE-2021-3631: Fix insecure sVirt label generation (single-category MCS labels) in virSecuritySELinuxMCSFind() - CVE-2021-3975: Fix use-after-free due to missing monitor lock in qemuProcessHandleMonitorEOF() - CVE-2022-0897: Fix missing locking in nwfilterConnectNumOfNWFilters() (DoS) - CVE-2024-1441: Fix off-by-one error in udevListInterfacesByStatus() - Fix udev device reference leak on NULL interface names in udevListInterfacesByStatus() and udevConnectListAllInterfaces()
osv:CLSA-2026-1790705830
libvirt
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-admin
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-bash-completion
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-client
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-config-network
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-config-nwfilter
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-interface
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-lxc
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-network
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-nodedev
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-nwfilter
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-qemu
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-secret
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-core
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-disk
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-gluster
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-iscsi
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-logical
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-mpath
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-rbd
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-driver-storage-scsi
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-kvm
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-daemon-lxc
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-devel
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-docs
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-libs
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-lock-sanlock
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-login-shell
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
libvirt-nss
Fixed versions: 4.5.0-36.el7_9.5.tuxcare.els2
Complete source record
{
"id": "afbf9db2816080b5fc1fcc279ba26874262f7a5b807efb670922c2829faacb7f",
"url": "https://osv.dev/vulnerability/CLSA-2026-1790705830",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "libvirt: Fix of 2 CVEs",
"summary": "- CVE-2021-3631: Fix insecure sVirt label generation (single-category MCS labels) in virSecuritySELinuxMCSFind() - CVE-2021-3975: Fix use-after-free due to missing monitor lock in qemuProcessHandleMonitorEOF() - CVE-2022-0897: Fix missing locking in nwfilterConnectNumOfNWFilters() (DoS) - CVE-2024-1441: Fix off-by-one error in udevListInterfacesByStatus() - Fix udev device reference leak on NULL interface names in udevListInterfacesByStatus() and udevConnectListAllInterfaces()",
"evidence": "osv:CLSA-2026-1790705830",
"products": [
{
"name": {
"value": "libvirt",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-admin",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-bash-completion",
"evidence": "/affected/2/package/name"
},
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{
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"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
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"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon",
"evidence": "/affected/4/package/name"
},
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{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-config-network",
"evidence": "/affected/5/package/name"
},
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"fixed_versions": [
{
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"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-config-nwfilter",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-interface",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-lxc",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-network",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-nodedev",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-nwfilter",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-qemu",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-secret",
"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-core",
"evidence": "/affected/15/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/15/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-disk",
"evidence": "/affected/16/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/16/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-gluster",
"evidence": "/affected/17/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/17/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-iscsi",
"evidence": "/affected/18/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/18/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-logical",
"evidence": "/affected/19/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/19/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-mpath",
"evidence": "/affected/20/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/20/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-rbd",
"evidence": "/affected/21/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/21/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-driver-storage-scsi",
"evidence": "/affected/22/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/22/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-kvm",
"evidence": "/affected/23/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/23/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-daemon-lxc",
"evidence": "/affected/24/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/24/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-devel",
"evidence": "/affected/25/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/25/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-docs",
"evidence": "/affected/26/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/26/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-libs",
"evidence": "/affected/27/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/27/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-lock-sanlock",
"evidence": "/affected/28/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/28/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-login-shell",
"evidence": "/affected/29/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/29/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libvirt-nss",
"evidence": "/affected/30/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.5.0-36.el7_9.5.tuxcare.els2",
"evidence": "/affected/30/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1790705830",
"aliases": [
"CLSA-2026-1790705830"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt",
"purl": "pkg:rpm/tuxcare/libvirt?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-admin",
"purl": "pkg:rpm/tuxcare/libvirt-admin?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-bash-completion",
"purl": "pkg:rpm/tuxcare/libvirt-bash-completion?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-client",
"purl": "pkg:rpm/tuxcare/libvirt-client?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon",
"purl": "pkg:rpm/tuxcare/libvirt-daemon?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon-config-network",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-config-network?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon-config-nwfilter",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-config-nwfilter?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-interface",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-interface?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-lxc",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-lxc?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.5.0-36.el7_9.5.tuxcare.els2"
}
]
}
],
"package": {
"name": "libvirt-daemon-driver-network",
"purl": "pkg:rpm/tuxcare/libvirt-daemon-driver-network?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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],
"modified": "2026-10-26T09:31:49.529882158Z",
"provider": "osv",
"upstream": [
"CVE-2021-3631",
"CVE-2021-3975",
"CVE-2022-0897",
"CVE-2024-1441"
],
"references": [
"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1790705830.html",
"https://nvd.nist.gov/vuln/detail/CVE-2021-3631",
"https://nvd.nist.gov/vuln/detail/CVE-2021-3975"
]
},
"related_cves": [
{
"value": "CVE-2021-3631",
"evidence": "/upstream"
},
{
"value": "CVE-2021-3975",
"evidence": "/upstream"
},
{
"value": "CVE-2022-0897",
"evidence": "/upstream"
},
{
"value": "CVE-2024-1441",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 448577,
"published_at": "2026-09-30T16:27:06+00:00"
}