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Scientific Linux Security Update : microcode_ctl on SL7.x x86_64 (2020:5083)

medium Nessus Plugin ID 142817

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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-2020:5083-1 advisory.

 - 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-20205083-1

Plugin Details

Severity: Medium

ID: 142817

File Name: sl_20201111_microcode_ctl_on_SL7_x.nasl

Version: 1.4

Type: local

Agent: unix

Published: 11/12/2020

Updated: 12/1/2020

Supported Sensors: 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-2020-8698

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: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/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2020

Vulnerability Publication Date: 11/11/2020

Reference Information

CVE: CVE-2020-8695, CVE-2020-8696, CVE-2020-8698