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Oracle Linux 9 : qemu-kvm (ELSA-2023-5094)

high Nessus Plugin ID 181365

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-5094 advisory.

 - A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service. (CVE-2023-3354)

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://linux.oracle.com/errata/ELSA-2023-5094.html

Plugin Details

Severity: High

ID: 181365

File Name: oraclelinux_ELSA-2023-5094.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/13/2023

Updated: 3/15/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-3354

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:oracle:linux:9::appstream, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:qemu-guest-agent, p-cpe:/a:oracle:linux:qemu-img, p-cpe:/a:oracle:linux:qemu-kvm, p-cpe:/a:oracle:linux:qemu-kvm-audio-pa, p-cpe:/a:oracle:linux:qemu-kvm-block-curl, p-cpe:/a:oracle:linux:qemu-kvm-block-rbd, p-cpe:/a:oracle:linux:qemu-kvm-common, p-cpe:/a:oracle:linux:qemu-kvm-core, p-cpe:/a:oracle:linux:qemu-kvm-device-display-virtio-gpu, p-cpe:/a:oracle:linux:qemu-kvm-device-display-virtio-gpu-pci, p-cpe:/a:oracle:linux:qemu-kvm-device-display-virtio-vga, p-cpe:/a:oracle:linux:qemu-kvm-device-usb-host, p-cpe:/a:oracle:linux:qemu-kvm-device-usb-redirect, p-cpe:/a:oracle:linux:qemu-kvm-docs, p-cpe:/a:oracle:linux:qemu-kvm-tools, p-cpe:/a:oracle:linux:qemu-kvm-ui-egl-headless, p-cpe:/a:oracle:linux:qemu-kvm-ui-opengl, p-cpe:/a:oracle:linux:qemu-pr-helper

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 9/13/2023

Vulnerability Publication Date: 7/11/2023

Reference Information

CVE: CVE-2023-3354

IAVB: 2023-B-0073-S