RHEL 7 : microcode_ctl (RHSA-2021:3029)

high Nessus Plugin ID 152447

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3029 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 package.

See Also

https://cwe.mitre.org/data/definitions/200.html

https://cwe.mitre.org/data/definitions/203.html

https://cwe.mitre.org/data/definitions/212.html

https://cwe.mitre.org/data/definitions/459.html

https://access.redhat.com/security/cve/CVE-2020-0543

https://access.redhat.com/security/cve/CVE-2020-0548

https://access.redhat.com/security/cve/CVE-2020-0549

https://access.redhat.com/security/cve/CVE-2020-8695

https://access.redhat.com/security/cve/CVE-2020-8696

https://access.redhat.com/security/cve/CVE-2020-8698

https://access.redhat.com/security/cve/CVE-2020-24489

https://access.redhat.com/security/cve/CVE-2020-24511

https://access.redhat.com/security/cve/CVE-2020-24512

https://access.redhat.com/errata/RHSA-2021:3029

https://bugzilla.redhat.com/1788786

https://bugzilla.redhat.com/1788788

https://bugzilla.redhat.com/1827165

https://bugzilla.redhat.com/1828583

https://bugzilla.redhat.com/1890355

https://bugzilla.redhat.com/1890356

https://bugzilla.redhat.com/1962650

https://bugzilla.redhat.com/1962702

https://bugzilla.redhat.com/1962722

Plugin Details

Severity: High

ID: 152447

File Name: redhat-RHSA-2021-3029.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/11/2021

Updated: 10/7/2021

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

CVSS Score Source: CVE-2020-24489

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:7.7, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_e4s:7.7, cpe:/o:redhat:rhel_eus:7.7, cpe:/o:redhat:rhel_tus:7.7, p-cpe:/a:redhat:enterprise_linux:microcode_ctl

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: 8/10/2021

Vulnerability Publication Date: 1/28/2020

Reference Information

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

RHSA: 2021:3029

CWE: 200, 203, 212, 459