Debian dla-4095 : intel-microcode - security update

high Nessus Plugin ID 233545

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4095 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4095-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost March 29, 2025 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : intel-microcode Version : 3.20250211.1~deb11u1 CVE ID : CVE-2023-34440 CVE-2023-43758 CVE-2024-24582 CVE-2024-28047 CVE-2024-28127 CVE-2024-29214 CVE-2024-31068 CVE-2024-31157 CVE-2024-36293 CVE-2024-37020 CVE-2024-39279 CVE-2024-39355 Debian Bug : 1095805

Microcode updates has been released for Intel(R) processors, addressing multiple potential vulnerabilties that may allow local privilege escalation, denial of service or information disclosure.

CVE-2023-34440 (INTEL-SA-01139)

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVE-2023-43758 (INTEL-SA-01139)

Improper input validation in UEFI firmware for some Intel(R) processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVE-2024-24582 (INTEL-SA-01139)

Improper input validation in XmlCli feature for UEFI firmware for some Intel(R) processors may allow privileged user to potentially enable escalation of privilege via local access.

CVE-2024-28047 (INTEL-SA-01139)

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

CVE-2024-28127 (INTEL-SA-01139)

Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVE-2024-29214 (INTEL-SA-01139)

Improper input validation in UEFI firmware CseVariableStorageSmm for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

CVE-2024-31068 (INTEL-SA-01166)

Improper Finite State Machines (FSMs) in Hardware Logic for some Intel(R) Processors may allow privileged user to potentially enable denial of service via local access.

CVE-2024-31157 (INTEL-SA-01139)

Improper initialization in UEFI firmware OutOfBandXML module in some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

CVE-2024-36293 (INTEL-SA-01213)

Improper access control in the EDECCSSA user leaf function for some Intel(R) Processors with Intel(R) SGX may allow an authenticated user to potentially enable denial of service via local access.

CVE-2024-37020 (INTEL-SA-01194)

Sequence of processor instructions leads to unexpected behavior in the Intel(R) DSA V1.0 for some Intel(R) Xeon(R) Processors may allow an authenticated user to potentially enable denial of service via local access.

CVE-2024-39279 (INTEL-SA-01139)

Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.

CVE-2024-39355 (INTEL-SA-01228)

Improper handling of physical or environmental conditions in some Intel(R) Processors may allow an authenticated user to enable denial of service via local access.

For Debian 11 bullseye, these problems have been fixed in version 3.20250211.1~deb11u1.

We recommend that you upgrade your intel-microcode packages.

For the detailed security status of intel-microcode please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/intel-microcode

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the intel-microcode packages.

Plugin Details

Severity: High

ID: 233545

File Name: debian_DLA-4095.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/29/2025

Updated: 3/29/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2023-43758

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 5.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2024-29214

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:intel-microcode

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 3/29/2025

Vulnerability Publication Date: 2/12/2025

Reference Information

CVE: CVE-2023-34440, CVE-2023-43758, CVE-2024-24582, CVE-2024-28047, CVE-2024-28127, CVE-2024-29214, CVE-2024-31068, CVE-2024-31157, CVE-2024-36293, CVE-2024-37020, CVE-2024-39279, CVE-2024-39355

Detections

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