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

medium Nessus Plugin ID 137374
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Synopsis

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

Description

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 https://www.intel.com/content/www/us/en/security-center/advisory/intel
-sa-00320.html, https://www.intel.com/content/www/us/en/security-center/advisory/intel
-sa-00329.html

Solution

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

https://security-tracker.debian.org/tracker/CVE-2020-0543

https://security-tracker.debian.org/tracker/CVE-2020-0548

https://security-tracker.debian.org/tracker/CVE-2020-0549

http://www.nessus.org/u?c444b53b

http://www.nessus.org/u?8a852169

http://www.nessus.org/u?019586d4

https://packages.debian.org/source/stretch/intel-microcode

https://packages.debian.org/source/buster/intel-microcode

https://www.debian.org/security/2020/dsa-4701

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

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

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

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: 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