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CBL Mariner 2.0 Security Update: shim / shim-unsigned-aarch64 / shim-unsigned-x64 (CVE-2023-40546)

medium Nessus Plugin ID 207026

Synopsis

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

Description

The version of shim / shim-unsigned-aarch64 / shim-unsigned-x64 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-2023-40546 advisory.

 - A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances. (CVE-2023-40546)

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-2023-40546

Plugin Details

Severity: Medium

ID: 207026

File Name: mariner_CVE-2023-40546.nasl

Version: 1.3

Type: local

Published: 9/12/2024

Updated: 12/13/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2023-40546

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:shim-unsigned-aarch64, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:shim, p-cpe:/a:microsoft:cbl-mariner:shim-unsigned-x64, p-cpe:/a:microsoft:cbl-mariner:shim-unsigned-aarch64-debugsource, p-cpe:/a:microsoft:cbl-mariner:shim-unsigned-aarch64-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/10/2024

Vulnerability Publication Date: 12/11/2023

Reference Information

CVE: CVE-2023-40546