ubuntu-cve-2019-20485
Vulnerability from osv_ubuntu
Published
2020-03-19 02:15
Modified
2025-07-16 04:55
Summary
Details

qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).

Severity
5.7 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libvirt-bin",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt-bin-dbgsym",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt-dev",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt-dev-dbgsym",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt-doc",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt0",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt0-dbg",
            "binary_version": "1.3.1-1ubuntu10.30"
          },
          {
            "binary_name": "libvirt0-dbgsym",
            "binary_version": "1.3.1-1ubuntu10.30"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libvirt",
        "purl": "pkg:deb/ubuntu/libvirt@1.3.1-1ubuntu10.30?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.1-1ubuntu10.30"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.16-2ubuntu11",
        "1.2.16-2ubuntu12",
        "1.2.16-2ubuntu13",
        "1.2.16-2ubuntu14",
        "1.2.21-2ubuntu1",
        "1.2.21-2ubuntu3",
        "1.2.21-2ubuntu4",
        "1.2.21-2ubuntu5",
        "1.2.21-2ubuntu7",
        "1.2.21-2ubuntu8",
        "1.2.21-2ubuntu9",
        "1.2.21-2ubuntu10",
        "1.3.1-1ubuntu1",
        "1.3.1-1ubuntu2",
        "1.3.1-1ubuntu3",
        "1.3.1-1ubuntu4",
        "1.3.1-1ubuntu6",
        "1.3.1-1ubuntu9",
        "1.3.1-1ubuntu10",
        "1.3.1-1ubuntu10.1",
        "1.3.1-1ubuntu10.2",
        "1.3.1-1ubuntu10.3",
        "1.3.1-1ubuntu10.5",
        "1.3.1-1ubuntu10.6",
        "1.3.1-1ubuntu10.7",
        "1.3.1-1ubuntu10.8",
        "1.3.1-1ubuntu10.10",
        "1.3.1-1ubuntu10.11",
        "1.3.1-1ubuntu10.12",
        "1.3.1-1ubuntu10.13",
        "1.3.1-1ubuntu10.14",
        "1.3.1-1ubuntu10.15",
        "1.3.1-1ubuntu10.17",
        "1.3.1-1ubuntu10.18",
        "1.3.1-1ubuntu10.19",
        "1.3.1-1ubuntu10.21",
        "1.3.1-1ubuntu10.22",
        "1.3.1-1ubuntu10.23",
        "1.3.1-1ubuntu10.24",
        "1.3.1-1ubuntu10.25",
        "1.3.1-1ubuntu10.26",
        "1.3.1-1ubuntu10.27",
        "1.3.1-1ubuntu10.29"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-libvirt",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libnss-libvirt-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-bin",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-clients",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-clients-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-gluster",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-gluster-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-rbd",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-rbd-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-sheepdog",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-sheepdog-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-zfs",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-zfs-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-system",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-daemon-system-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-dev",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-doc",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-sanlock",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-sanlock-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-wireshark",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt-wireshark-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt0",
            "binary_version": "4.0.0-1ubuntu8.17"
          },
          {
            "binary_name": "libvirt0-dbgsym",
            "binary_version": "4.0.0-1ubuntu8.17"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libvirt",
        "purl": "pkg:deb/ubuntu/libvirt@4.0.0-1ubuntu8.17?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.0-1ubuntu8.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.0-1ubuntu5",
        "3.6.0-1ubuntu6",
        "4.0.0-1ubuntu1",
        "4.0.0-1ubuntu2",
        "4.0.0-1ubuntu3",
        "4.0.0-1ubuntu4",
        "4.0.0-1ubuntu5",
        "4.0.0-1ubuntu6",
        "4.0.0-1ubuntu7",
        "4.0.0-1ubuntu8",
        "4.0.0-1ubuntu8.1",
        "4.0.0-1ubuntu8.2",
        "4.0.0-1ubuntu8.3",
        "4.0.0-1ubuntu8.4",
        "4.0.0-1ubuntu8.5",
        "4.0.0-1ubuntu8.6",
        "4.0.0-1ubuntu8.7",
        "4.0.0-1ubuntu8.8",
        "4.0.0-1ubuntu8.9",
        "4.0.0-1ubuntu8.10",
        "4.0.0-1ubuntu8.11",
        "4.0.0-1ubuntu8.12",
        "4.0.0-1ubuntu8.13",
        "4.0.0-1ubuntu8.14",
        "4.0.0-1ubuntu8.15",
        "4.0.0-1ubuntu8.16"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-libvirt",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libnss-libvirt-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-clients",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-clients-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-lxc",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-lxc-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-qemu",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-qemu-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-gluster",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-gluster-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-rbd",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-rbd-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-zfs",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-storage-zfs-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-vbox",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-vbox-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-xen",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-driver-xen-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-system",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-system-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-system-systemd",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-daemon-system-sysv",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-dev",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-doc",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-sanlock",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-sanlock-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-wireshark",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt-wireshark-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt0",
            "binary_version": "6.0.0-0ubuntu4"
          },
          {
            "binary_name": "libvirt0-dbgsym",
            "binary_version": "6.0.0-0ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libvirt",
        "purl": "pkg:deb/ubuntu/libvirt@6.0.0-0ubuntu4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.0.0-0ubuntu4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-0ubuntu5",
        "6.0.0-0ubuntu1",
        "6.0.0-0ubuntu2",
        "6.0.0-0ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).",
  "id": "UBUNTU-CVE-2019-20485",
  "modified": "2025-07-16T04:55:22Z",
  "published": "2020-03-19T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-20485"
    },
    {
      "type": "REPORT",
      "url": "https://www.redhat.com/archives/libvir-list/2019-December/msg00295.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.redhat.com/archives/libvir-list/2020-January/msg00569.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-20485"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-20485"
  ],
  "withdrawn": "2025-07-18T16:45:35Z"
}



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Nomenclature

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