Debian DSA-4701-1 : intel-microcode - security update

medium Nessus Plugin ID 137374
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote Debian host is missing a security-related update.


This update ships updated CPU microcode for some types of Intel CPUs and provides mitigations for the Special Register Buffer Data Sampling (CVE-2020-0543 ), Vector Register Sampling (CVE-2020-0548 ) and L1D Eviction Sampling (CVE-2020-0549 ) hardware vulnerabilities.

The microcode update for HEDT and Xeon CPUs with signature 0x50654 which was reverted in DSA 4565-2 is now included again with a fixed release.

The upstream update for Skylake-U/Y (signature 0x406e3) had to be excluded from this update due to reported hangs on boot.

For details refer to


Upgrade the intel-microcode packages.

For the oldstable distribution (stretch), these problems have been fixed in version 3.20200609.2~deb9u1.

For the stable distribution (buster), these problems have been fixed in version 3.20200609.2~deb10u1.

See Also

Plugin Details

Severity: Medium

ID: 137374

File Name: debian_DSA-4701.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/12/2020

Updated: 6/18/2020

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

Temporal Vector: E:U/RL:OF/RC:C


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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:intel-microcode, cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/11/2020

Vulnerability Publication Date: 1/28/2020

Reference Information

CVE: CVE-2020-0543, CVE-2020-0548, CVE-2020-0549

DSA: 4701