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CBL Mariner 2.0 Security Update: qemu (CVE-2021-4158)

medium Nessus Plugin ID 205047

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of qemu installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2021-4158 advisory.

 - A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. (CVE-2021-4158)

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

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2021-4158

Plugin Details

Severity: Medium

ID: 205047

File Name: mariner_CVE-2021-4158.nasl

Version: 1.1

Type: local

Published: 8/6/2024

Updated: 8/6/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2021-4158

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.4

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:qemu-system-hppa, p-cpe:/a:microsoft:cbl-mariner:qemu-system-aarch64, p-cpe:/a:microsoft:cbl-mariner:qemu-system-avr, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:qemu-system-arm-core, p-cpe:/a:microsoft:cbl-mariner:qemu-system-alpha-core, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-gpu-pci-gl, p-cpe:/a:microsoft:cbl-mariner:qemu-system-avr-core, p-cpe:/a:microsoft:cbl-mariner:qemu-block-dmg, p-cpe:/a:microsoft:cbl-mariner:qemu-block-nfs, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-gpu-ccw, p-cpe:/a:microsoft:cbl-mariner:qemu-docs, p-cpe:/a:microsoft:cbl-mariner:qemu-img, p-cpe:/a:microsoft:cbl-mariner:qemu-system-cris, p-cpe:/a:microsoft:cbl-mariner:qemu-ui-opengl, p-cpe:/a:microsoft:cbl-mariner:qemu-user, p-cpe:/a:microsoft:cbl-mariner:qemu-system-x86-core, p-cpe:/a:microsoft:cbl-mariner:qemu-block-curl, p-cpe:/a:microsoft:cbl-mariner:qemu-tools, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-gpu-gl, p-cpe:/a:microsoft:cbl-mariner:qemu-user-binfmt, p-cpe:/a:microsoft:cbl-mariner:qemu, p-cpe:/a:microsoft:cbl-mariner:qemu-common, p-cpe:/a:microsoft:cbl-mariner:qemu-tests, p-cpe:/a:microsoft:cbl-mariner:qemu-guest-agent, p-cpe:/a:microsoft:cbl-mariner:qemu-device-usb-smartcard, p-cpe:/a:microsoft:cbl-mariner:qemu-device-usb-redirect, p-cpe:/a:microsoft:cbl-mariner:qemu-kvm-core, p-cpe:/a:microsoft:cbl-mariner:qemu-system-cris-core, p-cpe:/a:microsoft:cbl-mariner:qemu-system-x86, p-cpe:/a:microsoft:cbl-mariner:qemu-virtiofsd, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-vga-gl, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-gpu-pci, p-cpe:/a:microsoft:cbl-mariner:qemu-system-arm, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-gpu, p-cpe:/a:microsoft:cbl-mariner:qemu-ui-curses, p-cpe:/a:microsoft:cbl-mariner:qemu-pr-helper, p-cpe:/a:microsoft:cbl-mariner:qemu-system-aarch64-core, p-cpe:/a:microsoft:cbl-mariner:qemu-block-rbd, p-cpe:/a:microsoft:cbl-mariner:qemu-ui-egl-headless, p-cpe:/a:microsoft:cbl-mariner:qemu-audio-oss, p-cpe:/a:microsoft:cbl-mariner:qemu-audio-alsa, p-cpe:/a:microsoft:cbl-mariner:qemu-system-alpha, p-cpe:/a:microsoft:cbl-mariner:qemu-block-iscsi, p-cpe:/a:microsoft:cbl-mariner:qemu-ui-gtk, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-vhost-user-gpu, p-cpe:/a:microsoft:cbl-mariner:qemu-device-usb-host, p-cpe:/a:microsoft:cbl-mariner:qemu-device-display-virtio-vga, p-cpe:/a:microsoft:cbl-mariner:qemu-kvm

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CBLMariner/release, Host/CBLMariner/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/1/2024

Vulnerability Publication Date: 5/10/2022

Reference Information

CVE: CVE-2021-4158