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Scientific Linux Security Update : microcode_ctl on SL7.x x86_64 (2021:3028)

high Nessus Plugin ID 152364

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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2021:3028-1 advisory.

 - hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)

 - hw: Vector Register Data Sampling (CVE-2020-0548)

 - hw: L1D Cache Eviction Sampling (CVE-2020-0549)

 - hw: vt-d related privilege escalation (CVE-2020-24489)

 - hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)

 - hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)

 - hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)

 - hw: Vector Register Leakage-Active (CVE-2020-8696)

 - hw: Fast forward store predictor (CVE-2020-8698)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected microcode_ctl and / or microcode_ctl-debuginfo packages.

See Also

https://www.scientificlinux.org/category/sl-errata/slsa-20213028-1

Plugin Details

Severity: High

ID: 152364

File Name: sl_20210809_microcode_ctl_on_SL7_x.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/9/2021

Updated: 8/9/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-24489

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:microcode_ctl, p-cpe:/a:fermilab:scientific_linux:microcode_ctl-debuginfo

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/9/2021

Vulnerability Publication Date: 1/28/2020

Reference Information

CVE: CVE-2020-0543, CVE-2020-0548, CVE-2020-0549, CVE-2020-24489, CVE-2020-24511, CVE-2020-24512, CVE-2020-8695, CVE-2020-8696, CVE-2020-8698