Detections
Analytics

Azure Linux 3.0 Security Update: shim (CVE-2023-40551)

medium Nessus Plugin ID 232680

Synopsis

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

Description

The version of shim 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-2023-40551 advisory.

 - A flaw was found in the MZ binary format in Shim. An out-of-bounds read May occur, leading to a crash or possible exposure of sensitive data during the system's boot phase. (CVE-2023-40551)

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-2023-40551

Plugin Details

Severity: Medium

ID: 232680

File Name: azure_linux_CVE-2023-40551.nasl

Version: 1.1

Type: local

Published: 3/13/2025

Updated: 3/13/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2023-40551

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

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

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

Vulnerability Information

CPE: x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:shim

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/11/2025

Vulnerability Publication Date: 1/29/2024

Reference Information

CVE: CVE-2023-40551