Debian DSA-5474-1 : intel-microcode - security update

medium Nessus Plugin ID 179735

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Synopsis

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

Description

The remote Debian 11 / 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5474 advisory.

- Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-40982)

- Unauthorized error injection in Intel(R) SGX or Intel(R) TDX for some Intel(R) Xeon(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2022-41804)

- Improper access control in some 3rd Generation Intel(R) Xeon(R) Scalable processors may allow a privileged user to potentially enable information disclosure via local access. (CVE-2023-23908)

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.

For the stable distribution (bookworm), these problems have been fixed in version 3.20230808.1~deb12u1.

Plugin Details

Severity: Medium

ID: 179735

File Name: debian_DSA-5474.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/14/2023

Updated: 8/18/2023

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2022-41804

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:intel-microcode, cpe:/o:debian:debian_linux:12.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/11/2023

Vulnerability Publication Date: 8/3/2023

Reference Information

CVE: CVE-2022-40982, CVE-2022-41804, CVE-2023-23908

Detections

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