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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.This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for security vulnerabilities. CVE-2022-40982 Daniel Moghimi discovered Gather Data Sampling (GDS), a hardware vulnerability which allows unprivileged speculative access to data which was previously stored in vector registers. For details please refer to /https://downfall.page and https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical- documentation/gather-data-sampling.html. CVE-2022-41804 Unauthorized error injection in Intel SGX or Intel TDX for some Intel Xeon Processors which may allow a local user to potentially escalate privileges.
CVE-2023-23908 Improper access control in some 3rd Generation Intel Xeon Scalable processors may result in an information leak. For the oldstable distribution (bullseye), these problems have been fixed in version 3.20230808.1~deb11u1. For the stable distribution (bookworm), these problems have been fixed in version 3.20230808.1~deb12u1. 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 (bookworm), these problems have been fixed in version 3.20230808.1~deb12u1.
See Also
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1043305
http://www.nessus.org/u?019586d4
https://www.debian.org/security/2023/dsa-5474
https://security-tracker.debian.org/tracker/CVE-2022-40982
https://security-tracker.debian.org/tracker/CVE-2022-41804
https://security-tracker.debian.org/tracker/CVE-2023-23908
Plugin Details
Severity: Medium
ID: 179735
File Name: debian_DSA-5474.nasl
Version: 1.5
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 8/14/2023
Updated: 1/24/2025
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
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