UBUNTU-CVE-2020-12430

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Source
https://ubuntu.com/security/CVE-2020-12430
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12430.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-12430
Upstream
Downstream
Related
Published
2020-04-28T20:15:00Z
Modified
2025-09-08T16:46:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged users with a read-only connection to cause a memory leak in the domstats command, resulting in a potential denial of service.

References

Affected packages

Ubuntu:20.04:LTS / libvirt

Package

Name
libvirt
Purl
pkg:deb/ubuntu/libvirt@6.0.0-0ubuntu6?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.0.0-0ubuntu6

Affected versions

5.*

5.4.0-0ubuntu5

6.*

6.0.0-0ubuntu1
6.0.0-0ubuntu2
6.0.0-0ubuntu3
6.0.0-0ubuntu4
6.0.0-0ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libnss-libvirt"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-clients"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-lxc"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-qemu"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-storage-gluster"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-storage-rbd"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-storage-zfs"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-vbox"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-driver-xen"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-system"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-system-systemd"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-daemon-system-sysv"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-dev"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-sanlock"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt-wireshark"
        },
        {
            "binary_version": "6.0.0-0ubuntu6",
            "binary_name": "libvirt0"
        }
    ],
    "availability": "No subscription required"
}