SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:1889-1)

medium Nessus Plugin ID 138434
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VPR Score: 8.1

Synopsis

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

Description

This update for xen fixes the following issues :

CVE-2020-15563: Fixed inverted code paths in x86 dirty VRAM tracking (bsc#1173377).

CVE-2020-15565: Fixed insufficient cache write-back under VT-d (bsc#1173378).

CVE-2020-15566: Fixed incorrect error handling in event channel port allocation (bsc#1173376).

CVE-2020-15567: Fixed non-atomic modification of live EPT PTE (bsc#1173380).

CVE-2020-0543: Special Register Buffer Data Sampling (SRBDS) aka 'CrossTalk' (bsc#1172205).

Additional 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 Linux Enterprise Module for Server Applications 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1889=1

SUSE Linux Enterprise Module for Basesystem 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1889=1

See Also

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

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

https://bugzilla.suse.com/show_bug.cgi?id=1173376

https://bugzilla.suse.com/show_bug.cgi?id=1173377

https://bugzilla.suse.com/show_bug.cgi?id=1173378

https://bugzilla.suse.com/show_bug.cgi?id=1173380

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

https://www.suse.com/security/cve/CVE-2020-15563/

https://www.suse.com/security/cve/CVE-2020-15565/

https://www.suse.com/security/cve/CVE-2020-15566/

https://www.suse.com/security/cve/CVE-2020-15567/

http://www.nessus.org/u?2e2c6224

Plugin Details

Severity: Medium

ID: 138434

File Name: suse_SU-2020-1889-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 7/14/2020

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 8.1

CVSS Score Source: CVE-2020-15565

CVSS v2.0

Base Score: 6.1

Temporal Score: 4.5

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

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

CVSS v3.0

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: 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: 7/10/2020

Vulnerability Publication Date: 6/15/2020

Reference Information

CVE: CVE-2020-0543, CVE-2020-15563, CVE-2020-15565, CVE-2020-15566, CVE-2020-15567

IAVB: 2020-B-0034-S