RHEL 7 : microcode_ctl (RHSA-2020:2758)

Low Nessus Plugin ID 137883

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-2020:2758 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)

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://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/errata/RHSA-2020:2758

https://bugzilla.redhat.com/1788786

https://bugzilla.redhat.com/1788788

https://bugzilla.redhat.com/1827165

Plugin Details

Severity: Low

ID: 137883

File Name: redhat-RHSA-2020-2758.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/06/29

Updated: 2020/07/03

Dependencies: 12634

Risk Information

Risk Factor: Low

CVSS Score Source: CVE-2020-0549

CVSS v2.0

Base Score: 2.1

Temporal Score: 1.6

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

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:redhat:enterprise_linux:7.7, cpe:/o:redhat:rhel_eus:7.7, cpe:/o:redhat:rhel_eus:7.7::computenode, cpe:/o:redhat:rhel_eus:7.7::server, 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: 2020/06/29

Vulnerability Publication Date: 2020/01/28

Reference Information

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

RHSA: 2020:2758

CWE: 200, 203