QEMU 4.2 < 5.1.0-rc0 Multiple Vulnerabilities

medium Nessus Plugin ID 138897

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Synopsis

The remote host has virtualization software installed that is affected by multiple vulnerabilities.

Description

The version of QEMU installed on the remote Windows host is prior to release 5.1.0-rc0. It is, therefore, affected by multiple vulnerabilities:
A denial of service flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service. (CVE-2020-10761)

An out-of-bounds error occurs within hw/pci/pci.c. A guest OS user could use this flaw by providing an address near the end of the PCI configuration space. (CVE-2020-13791)

A MemoryRegionOps object may lack read/write callback methods, leading to a NULL pointer dereference.
(CVE-2020-15469)

A use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e packet with the data's address set to the e1000e's MMIO address. (CVE-2020-15859)

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 5.1.0-rc0 or later.

Plugin Details

Severity: Medium

ID: 138897

File Name: qemu_win_5_1_rc0.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

Published: 7/24/2020

Updated: 2/28/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

CVSS Score Source: CVE-2020-10761

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS Score Source: CVE-2020-13791

Vulnerability Information

CPE: cpe:/a:qemu:qemu

Required KB Items: installed_sw/QEMU

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/22/2020

Vulnerability Publication Date: 6/9/2020

Reference Information

CVE: CVE-2020-10761, CVE-2020-13791, CVE-2020-15469, CVE-2020-15859

IAVB: 2020-B-0041-S

Detections

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