SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1713-1)

medium Nessus Plugin ID 138288
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 SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10768: Fixed an issue with the prctl() function which could have allowed indirect branch speculation even after it has been disabled (bsc#1172783).

CVE-2020-10767: Fixed an issue where the Indirect Branch Prediction Barrier (IBPB) would have been disabled when STIBP is unavailable or enhanced IBRS is available making the system vulnerable to spectre v2 (bsc#1172782).

CVE-2020-10766: Fixed an issue with Linux scheduler which could have allowed an attacker to turn off the SSBD protection (bsc#1172781).

xfs: Fix tail rounding in xfs_alloc_file_space() (bsc#1172049).

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 OpenStack Cloud Crowbar 8 :

zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-1713=1

SUSE OpenStack Cloud 8 :

zypper in -t patch SUSE-OpenStack-Cloud-8-2020-1713=1

SUSE Linux Enterprise Server for SAP 12-SP3 :

zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-1713=1

SUSE Linux Enterprise Server 12-SP3-LTSS :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-1713=1

SUSE Linux Enterprise Server 12-SP3-BCL :

zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-1713=1

SUSE Linux Enterprise High Availability 12-SP3 :

zypper in -t patch SUSE-SLE-HA-12-SP3-2020-1713=1

SUSE Enterprise Storage 5 :

zypper in -t patch SUSE-Storage-5-2020-1713=1

HPE Helion Openstack 8 :

zypper in -t patch HPE-Helion-OpenStack-8-2020-1713=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1172049

https://bugzilla.suse.com/show_bug.cgi?id=1172781

https://bugzilla.suse.com/show_bug.cgi?id=1172782

https://bugzilla.suse.com/show_bug.cgi?id=1172783

https://www.suse.com/security/cve/CVE-2020-10766/

https://www.suse.com/security/cve/CVE-2020-10767/

https://www.suse.com/security/cve/CVE-2020-10768/

http://www.nessus.org/u?fb11208b

Plugin Details

Severity: Medium

ID: 138288

File Name: suse_SU-2020-1713-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 7/9/2020

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-10768

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: 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:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-kgraft, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_180-94_124-default, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_180-94_124-default-debuginfo, cpe:/o:novell:suse_linux:12

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: 6/23/2020

Vulnerability Publication Date: 9/15/2020

Reference Information

CVE: CVE-2020-10766, CVE-2020-10767, CVE-2020-10768