SUSE SLES12 Security Update : kernel (Live Patch 36 for SLE 12 SP3) (SUSE-SU-2021:3196-1)

high Nessus Plugin ID 153620

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The remote SUSE Linux SLES12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3196-1 advisory.

- kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)

- arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)

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 kgraft-patch-4_4_180-94_135-default package.

See Also

https://www.suse.com/security/cve/CVE-2021-3653

https://www.suse.com/security/cve/CVE-2021-38198

https://bugzilla.suse.com/1189278

https://bugzilla.suse.com/1189420

http://www.nessus.org/u?aa500915

Plugin Details

Severity: High

ID: 153620

File Name: suse_SU-2021-3196-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/24/2021

Updated: 1/20/2022

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-3653

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

Temporal Vector: CVSS2#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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:novell:suse_linux:12:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:kgraft-patch-4_4_180-94_135-default:*:*:*:*:*:*:*

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: 9/23/2021

Vulnerability Publication Date: 8/8/2021

Reference Information

CVE: CVE-2021-38198, CVE-2021-3653

SuSE: SUSE-SU-2021:3196-1