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Linux Distros Unpatched Vulnerability : CVE-2020-14394

low Nessus Plugin ID 223242

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service. (CVE-2020-14394)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2020-14394

https://ubuntu.com/security/CVE-2020-14394

Plugin Details

Severity: Low

ID: 223242

File Name: unpatched_CVE_2020_14394.nasl

Version: 1.4

Type: local

Agent: unix

Family: Misc.

Published: 3/4/2025

Updated: 9/10/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-14394

CVSS v3

Risk Factor: Low

Base Score: 3.2

Temporal Score: 2.9

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2020-14394

Vulnerability Information

CPE: p-cpe:/a:centos:centos:qemu-kvm-block-gluster, p-cpe:/a:centos:centos:qemu-kvm-block-iscsi, p-cpe:/a:centos:centos:qemu-kvm-common, p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent, p-cpe:/a:centos:centos:qemu-kvm-docs, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-pci, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-spice, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-rbd, p-cpe:/a:redhat:enterprise_linux:qemu-img, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-vga, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kiwi, p-cpe:/a:centos:centos:qemu-kvm-core, p-cpe:/a:redhat:enterprise_linux:qemu-kvm, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-usb-redirect, p-cpe:/a:centos:centos:qemu-kiwi, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-curl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-usb-host, p-cpe:/a:centos:centos:qemu-kvm, p-cpe:/a:redhat:enterprise_linux:qemu-pr-helper, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-opengl, p-cpe:/a:centos:centos:qemu-kvm-block-ssh, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-ccw, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-ccw, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-pci, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-docs, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-vga, p-cpe:/a:centos:centos:qemu-guest-agent, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu, p-cpe:/a:centos:centos:qemu-kvm-block-rbd, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu, p-cpe:/a:canonical:ubuntu_linux:qemu, p-cpe:/a:centos:centos:qemu-kvm-hw-usbredir, p-cpe:/a:centos:centos:qemu-kvm-tools, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-pci-gl, cpe:/a:redhat:advanced_virtualization:8::el8, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:qemu-kvm-block-blkio, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-core, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-ui-egl-headless, p-cpe:/a:centos:centos:qemu-kvm-ui-opengl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tests, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-gpu-pci-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-gpu-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-iscsi, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-ssh, p-cpe:/a:centos:centos:qemu-kvm-device-usb-host, p-cpe:/a:centos:centos:qemu-kvm-audio-pa, p-cpe:/a:centos:centos:qemu-img, p-cpe:/a:centos:centos:qemu-kvm-block-curl, p-cpe:/a:centos:centos:qemu-kvm-device-display-virtio-vga-gl, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-gluster, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-hw-usbredir, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:centos:centos:qemu-kvm-ui-spice, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-block-blkio, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-device-display-virtio-vga-gl, p-cpe:/a:centos:centos:qemu-kvm-device-usb-redirect, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-audio-pa, p-cpe:/a:centos:centos:qemu-kvm-tests, p-cpe:/a:centos:centos:qemu-kvm-ui-egl-headless, p-cpe:/a:redhat:enterprise_linux:qemu-kvm-common, p-cpe:/a:centos:centos:qemu-pr-helper

Required KB Items: Host/OS/identifier, Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 8/17/2022

Reference Information

CVE: CVE-2020-14394