SUSE SLES15 Security Update : xen (SUSE-SU-2021:1460-1)

medium Nessus Plugin ID 149227

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Synopsis

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

Description

This update for xen fixes the following issues :

CVE-2020-28368: Intel RAPL sidechannel attack aka PLATYPUS attack (bsc#1178591, XSA-351)

CVE-2021-3308: IRQ vector leak on x86 (bsc#1181254, XSA-360)

CVE-2021-28687: HVM soft-reset crashes toolstack (bsc#1183072, XSA-368)

L3: conring size for XEN HV's with huge memory to small (bsc#1177204).

kdump of HVM fails, soft-reset not handled by libxl (bsc#1179148)

openQA job causes libvirtd to dump core when running kdump inside domain (bsc#1181989).

Upstream bug fixes (bsc#1027519)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Manager Server 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-1460=1

SUSE Manager Retail Branch Server 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-1460=1

SUSE Manager Proxy 4.0 :

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-1460=1

SUSE Linux Enterprise Server for SAP 15-SP1 :

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2021-1460=1

SUSE Linux Enterprise Server 15-SP1-LTSS :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-1460=1

SUSE Linux Enterprise Server 15-SP1-BCL :

zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2021-1460=1

SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS :

zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2021-1460=1

SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS :

zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-ESPOS-2021-1460=1

SUSE Enterprise Storage 6 :

zypper in -t patch SUSE-Storage-6-2021-1460=1

SUSE CaaS Platform 4.0 :

To install this update, use the SUSE CaaS Platform 'skuba' tool. I will inform you if it detects new updates and let you then trigger updating of the complete cluster in a controlled way.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1027519

https://bugzilla.suse.com/show_bug.cgi?id=1177204

https://bugzilla.suse.com/show_bug.cgi?id=1178591

https://bugzilla.suse.com/show_bug.cgi?id=1179148

https://bugzilla.suse.com/show_bug.cgi?id=1181254

https://bugzilla.suse.com/show_bug.cgi?id=1181989

https://bugzilla.suse.com/show_bug.cgi?id=1183072

https://www.suse.com/security/cve/CVE-2020-28368/

https://www.suse.com/security/cve/CVE-2021-28687/

https://www.suse.com/security/cve/CVE-2021-3308/

http://www.nessus.org/u?b34ac24f

Plugin Details

Severity: Medium

ID: 149227

File Name: suse_SU-2021-1460-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 5/3/2021

Updated: 1/26/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2020-28368

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.9

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-devel, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools-domU, p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo, cpe:/o:novell:suse_linux:15

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: 4/30/2021

Vulnerability Publication Date: 11/10/2020

Reference Information

CVE: CVE-2020-28368, CVE-2021-3308, CVE-2021-28687