CVE-2021-3559

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{"affected": [{"affectedData": [{"product": "libvirt", "vendor": "n/a", "versions": [{"status": "affected", "version": "libvirt 7.0.0"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*", "matchCriteriaId": "BAD20715-430E-4168-820B-A23252A72B55", "versionEndExcluding": "7.0.0", "versionStartIncluding": "6.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*", "matchCriteriaId": "E7CF3019-975D-40BB-A8A4-894E62BD3797", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en libvirt en la API virConnectListAllNodeDevices en versiones anteriores a 7.0.0. Solo afecta a los hosts con un dispositivo PCI y un controlador que admita dispositivos mediados (por ejemplo, el controlador GRID). Este fallo podr\u00eda ser usado por un cliente no privilegiado con una conexi\u00f3n de solo lectura para bloquear el demonio libvirt al ejecutar el comando virsh \"nodedev-list\". La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema"}], "id": "CVE-2021-3559", "lastModified": "2026-06-17T04:05:20.667", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-24T12:15:07.677", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1962306"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210706-0006/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1962306"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210706-0006/"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Guo Zhiyi (Red Hat).", "bugzilla": {"description": "libvirt: nodedev-list command may cause libvirt to crash on hosts with GRID driver installed", "id": "1962306", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1962306"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-119", "details": ["A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.", "A flaw was found in libvirt in the virConnectListAllNodeDevices API. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-3559", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "virt:rhel/libvirt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:8.2/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:8.3/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:av/libvirt", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "libvirt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-12-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3559\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3559"], "statement": "The versions of `libvirt` as shipped with Red Hat Enterprise Linux 6, 7, 8, and Red Hat Enterprise Linux Advanced Virtualization 8 are not affected by this issue, as they did not include the vulnerable code, which was introduced in a later version of the package (libvirt-v6.10.0).", "threat_severity": "Moderate"}

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