Security advisory

{
  "id": "4e2f1f8ce778f115fd3225795e0de2b92ee756e3a9e581222eedc2de59650cec",
  "url": "https://osv.dev/vulnerability/CVE-2021-3559",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-3559",
    "summary": "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.",
    "evidence": "osv:CVE-2021-3559",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-3559",
      "aliases": [
        "CVE-2021-3559"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libvirt/libvirt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e27603980ac8b12b5ea6eab93cede8a869ddf48d"
                },
                {
                  "fixed": "501563469e67ea54be4ec1b3b84d4f0405e90ea4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.10.0"
                      },
                      {
                        "fixed": "7.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v7.0.0-rc2",
            "v7.0.0-rc1",
            "v6.10.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3559.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/libvirt/libvirt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e27603980ac8b12b5ea6eab93cede8a869ddf48d"
                },
                {
                  "fixed": "501563469e67ea54be4ec1b3b84d4f0405e90ea4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "6.10.0"
                      },
                      {
                        "fixed": "7.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v7.0.0-rc2",
            "v7.0.0-rc1",
            "v6.10.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3559.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:43.498429939Z",
      "provider": "osv",
      "references": [
        "https://security.netapp.com/advisory/ntap-20210706-0006/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1962306"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-3559",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435635,
  "published_at": "2021-05-24T12:15:07.677+00:00"
}