QEMU < 8.1.0-rc2 DOS

medium Nessus Plugin ID 179666

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Synopsis

The remote host has virtualization software installed that is affected by a denial of service vulnerability

Description

The version of QEMU installed on the remote Windows host is affected by a race condition due to the async nature of hot-unplug. hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to QEMU 8.1.0-rc2 or later.

Plugin Details

Severity: Medium

ID: 179666

File Name: qemu_win_8_1_0_rc2.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 8/10/2023

Updated: 9/28/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

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

CVSS Score Source: CVE-2023-3301

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: cpe:/a:qemu:qemu

Required KB Items: installed_sw/QEMU

Exploit Ease: No known exploits are available

Patch Publication Date: 6/29/2023

Vulnerability Publication Date: 6/19/2023

Reference Information

CVE: CVE-2023-3301

IAVB: 2023-B-0058-S

Detections

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