Detections
Analytics

Azure Linux 3.0 Security Update: edk2 / hvloader (CVE-2023-45231)

medium Nessus Plugin ID 244829

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Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of edk2 / hvloader installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-45231 advisory.

 - EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality. (CVE-2023-45231)

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-2023-45231

Plugin Details

Severity: Medium

ID: 244829

File Name: azure_linux_CVE-2023-45231.nasl

Version: 1.1

Type: local

Published: 8/7/2025

Updated: 8/7/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.8

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

CVSS Score Source: CVE-2023-45231

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:edk2-tools-doc, p-cpe:/a:microsoft:azure_linux:edk2-ovmf-ia32, p-cpe:/a:microsoft:azure_linux:hvloader, p-cpe:/a:microsoft:azure_linux:edk2-ovmf, p-cpe:/a:microsoft:azure_linux:edk2-tools, p-cpe:/a:microsoft:azure_linux:edk2-experimental, p-cpe:/a:microsoft:azure_linux:edk2-ext4, p-cpe:/a:microsoft:azure_linux:edk2-ovmf-xen, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:edk2-tools-python

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2025

Vulnerability Publication Date: 1/16/2024

Reference Information

CVE: CVE-2023-45231