Debian DSA-5178-1 : intel-microcode - security update

medium Nessus Plugin ID 162820

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Synopsis

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

Description

The remote Debian 10 / 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5178 advisory.

This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for security vulnerabilities. CVE-2022-21123, CVE-2022-21125, CVE-2022-21127, CVE-2022-21166 Various researchers discovered flaws in Intel processors, collectively referred to as MMIO Stale Data vulnerabilities, which may result in information leak to local users. For details please refer to https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical- documentation/processor-mmio-stale-data-vulnerabilities.html CVE-2022-21151 Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that for some Intel processors optimization removal or modification of security-critical code may result in information disclosure to local users. For the oldstable distribution (buster), these problems have been fixed in version 3.20220510.1~deb10u1. For the stable distribution (bullseye), these problems have been fixed in version 3.20220510.1~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

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.

For the stable distribution (bullseye), these problems have been fixed in version 3.20220510.1~deb11u1.

Plugin Details

Severity: Medium

ID: 162820

File Name: debian_DSA-5178.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 7/7/2022

Updated: 1/24/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2022-21166

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:H/I:N/A:N

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/6/2022

Vulnerability Publication Date: 5/12/2022

Reference Information

CVE: CVE-2022-21123, CVE-2022-21125, CVE-2022-21127, CVE-2022-21151, CVE-2022-21166

Detections

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