SUSE SLES11 Security Update : microcode_ctl (SUSE-SU-2021:14758-1)

high Nessus Plugin ID 151127

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES11 / SLES_SAP11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:14758-1 advisory.

Updated to Intel CPU Microcode 20210525 release:

- CVE-2020-24513: A domain bypass transient execution vulnerability was discovered on some Intel Atom processors that use a micro-architectural incident channel. (bsc#1179833)
- CVE-2020-24511: The IBRS feature to mitigate Spectre variant 2 transient execution side channel vulnerabilities may not fully prevent non-root (guest) branches from controlling the branch predictions of the root (host) (bsc#1179836)
- CVE-2020-24512: Fixed trivial data value cache-lines such as all-zero value cache-lines may lead to changes in cache-allocation or write-back behavior for such cache-lines (bsc#1179837)
- CVE-2020-24489: Fixed Intel VT-d device pass through potential local privilege escalation (bsc#1179839)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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

Solution

Update the affected microcode_ctl package.

Plugin Details

Severity: High

ID: 151127

File Name: suse_SU-2021-14758-1.nasl

Version: 1.7

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 6/29/2021

Updated: 6/25/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.3

Percentile: 96.59

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:novell:suse_linux:11, p-cpe:/a:novell:suse_linux:microcode_ctl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2021

Vulnerability Publication Date: 6/9/2021

Reference Information

CVE: CVE-2020-24489, CVE-2020-24511, CVE-2020-24512, CVE-2020-24513

SuSE: SUSE-SU-2021:14758-1

Detections

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