SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:1609-1)

low Nessus Plugin ID 137620
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VPR Score: 6.1

Synopsis

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

Description

This update for xen to version 4.12.3 fixes the following issues :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1172205).

Added support for new 64bit libxl memory API (bsc#1167007 and bsc#1157490).

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 Linux Enterprise Module for Server Applications 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1609=1

SUSE Linux Enterprise Module for Basesystem 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1609=1

See Also

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

https://bugzilla.suse.com/show_bug.cgi?id=1157490

https://bugzilla.suse.com/show_bug.cgi?id=1167007

https://bugzilla.suse.com/show_bug.cgi?id=1172205

https://www.suse.com/security/cve/CVE-2020-0543/

http://www.nessus.org/u?9cbacc6e

Plugin Details

Severity: Low

ID: 137620

File Name: suse_SU-2020-1609-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 6/18/2020

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Low

VPR Score: 6.1

CVSS Score Source: CVE-2020-0543

CVSS v2.0

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 v3.0

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: 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: 6/11/2020

Vulnerability Publication Date: 6/15/2020

Reference Information

CVE: CVE-2020-0543