SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0741-1)

high Nessus Plugin ID 147579
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 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2021-26930: Fixed an improper error handling in blkback's grant mapping (XSA-365 bsc#1181843).

CVE-2021-26931: Fixed an issue where Linux kernel was treating grant mapping errors as bugs (XSA-362 bsc#1181753).

CVE-2021-26932: Fixed improper error handling issues in Linux grant mapping (XSA-361 bsc#1181747). by remote attackers to read or write files via directory traversal in an XCOPY request (bsc#178372).

CVE-2020-12362: Fixed an integer overflow in the firmware which may have allowed a privileged user to potentially enable an escalation of privilege via local access (bsc#1181720).

CVE-2020-12363: Fixed an improper input validation which may have allowed a privileged user to potentially enable a denial of service via local access (bsc#1181735).

CVE-2020-12364: Fixed a NULL pointer reference which may have allowed a privileged user to potentially enable a denial of service via local access (bsc#1181736 ).

CVE-2020-12373: Fixed an expired pointer dereference which may have allowed a privileged user to potentially enable a denial of service via local access (bsc#1181738).

CVE-2020-29368,CVE-2020-29374: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179660, bsc#1179428).

The update package also includes non-security fixes. See advisory for details.

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 MicroOS 5.0 :

zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-741=1

SUSE Linux Enterprise Workstation Extension 15-SP2 :

zypper in -t patch SUSE-SLE-Product-WE-15-SP2-2021-741=1

SUSE Linux Enterprise Module for Live Patching 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-741=1

SUSE Linux Enterprise Module for Legacy Software 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP2-2021-741=1

SUSE Linux Enterprise Module for Development Tools 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP2-2021-741=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-741=1

SUSE Linux Enterprise High Availability 15-SP2 :

zypper in -t patch SUSE-SLE-Product-HA-15-SP2-2021-741=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1065600

https://bugzilla.suse.com/show_bug.cgi?id=1065729

https://bugzilla.suse.com/show_bug.cgi?id=1078720

https://bugzilla.suse.com/show_bug.cgi?id=1081134

https://bugzilla.suse.com/show_bug.cgi?id=1084610

https://bugzilla.suse.com/show_bug.cgi?id=1132477

https://bugzilla.suse.com/show_bug.cgi?id=1151927

https://bugzilla.suse.com/show_bug.cgi?id=1152472

https://bugzilla.suse.com/show_bug.cgi?id=1152489

https://bugzilla.suse.com/show_bug.cgi?id=1154353

https://bugzilla.suse.com/show_bug.cgi?id=1155518

https://bugzilla.suse.com/show_bug.cgi?id=1156395

https://bugzilla.suse.com/show_bug.cgi?id=1163776

https://bugzilla.suse.com/show_bug.cgi?id=1169514

https://bugzilla.suse.com/show_bug.cgi?id=1170442

https://bugzilla.suse.com/show_bug.cgi?id=1176248

https://bugzilla.suse.com/show_bug.cgi?id=1176855

https://bugzilla.suse.com/show_bug.cgi?id=1177109

https://bugzilla.suse.com/show_bug.cgi?id=1177326

https://bugzilla.suse.com/show_bug.cgi?id=1177440

https://bugzilla.suse.com/show_bug.cgi?id=1177529

https://bugzilla.suse.com/show_bug.cgi?id=1178142

https://bugzilla.suse.com/show_bug.cgi?id=1178995

https://bugzilla.suse.com/show_bug.cgi?id=1179082

https://bugzilla.suse.com/show_bug.cgi?id=1179137

https://bugzilla.suse.com/show_bug.cgi?id=1179243

https://bugzilla.suse.com/show_bug.cgi?id=1179428

https://bugzilla.suse.com/show_bug.cgi?id=1179660

https://bugzilla.suse.com/show_bug.cgi?id=1179929

https://bugzilla.suse.com/show_bug.cgi?id=1180058

https://bugzilla.suse.com/show_bug.cgi?id=1180846

https://bugzilla.suse.com/show_bug.cgi?id=1180964

https://bugzilla.suse.com/show_bug.cgi?id=1180989

https://bugzilla.suse.com/show_bug.cgi?id=1181133

https://bugzilla.suse.com/show_bug.cgi?id=1181259

https://bugzilla.suse.com/show_bug.cgi?id=1181544

https://bugzilla.suse.com/show_bug.cgi?id=1181574

https://bugzilla.suse.com/show_bug.cgi?id=1181637

https://bugzilla.suse.com/show_bug.cgi?id=1181655

https://bugzilla.suse.com/show_bug.cgi?id=1181671

https://bugzilla.suse.com/show_bug.cgi?id=1181674

https://bugzilla.suse.com/show_bug.cgi?id=1181710

https://bugzilla.suse.com/show_bug.cgi?id=1181720

https://bugzilla.suse.com/show_bug.cgi?id=1181735

https://bugzilla.suse.com/show_bug.cgi?id=1181736

https://bugzilla.suse.com/show_bug.cgi?id=1181738

https://bugzilla.suse.com/show_bug.cgi?id=1181747

https://bugzilla.suse.com/show_bug.cgi?id=1181753

https://bugzilla.suse.com/show_bug.cgi?id=1181818

https://bugzilla.suse.com/show_bug.cgi?id=1181843

https://bugzilla.suse.com/show_bug.cgi?id=1181854

https://bugzilla.suse.com/show_bug.cgi?id=1181896

https://bugzilla.suse.com/show_bug.cgi?id=1181958

https://bugzilla.suse.com/show_bug.cgi?id=1181960

https://bugzilla.suse.com/show_bug.cgi?id=1181985

https://bugzilla.suse.com/show_bug.cgi?id=1182047

https://bugzilla.suse.com/show_bug.cgi?id=1182110

https://bugzilla.suse.com/show_bug.cgi?id=1182118

https://bugzilla.suse.com/show_bug.cgi?id=1182128

https://bugzilla.suse.com/show_bug.cgi?id=1182140

https://bugzilla.suse.com/show_bug.cgi?id=1182171

https://bugzilla.suse.com/show_bug.cgi?id=1182175

https://bugzilla.suse.com/show_bug.cgi?id=1182259

https://bugzilla.suse.com/show_bug.cgi?id=1182265

https://bugzilla.suse.com/show_bug.cgi?id=1182266

https://bugzilla.suse.com/show_bug.cgi?id=1182267

https://bugzilla.suse.com/show_bug.cgi?id=1182268

https://bugzilla.suse.com/show_bug.cgi?id=1182271

https://bugzilla.suse.com/show_bug.cgi?id=1182272

https://bugzilla.suse.com/show_bug.cgi?id=1182273

https://bugzilla.suse.com/show_bug.cgi?id=1182275

https://bugzilla.suse.com/show_bug.cgi?id=1182276

https://bugzilla.suse.com/show_bug.cgi?id=1182278

https://bugzilla.suse.com/show_bug.cgi?id=1182283

https://bugzilla.suse.com/show_bug.cgi?id=1182341

https://bugzilla.suse.com/show_bug.cgi?id=1182374

https://bugzilla.suse.com/show_bug.cgi?id=1182380

https://bugzilla.suse.com/show_bug.cgi?id=1182381

https://bugzilla.suse.com/show_bug.cgi?id=1182406

https://bugzilla.suse.com/show_bug.cgi?id=1182430

https://bugzilla.suse.com/show_bug.cgi?id=1182439

https://bugzilla.suse.com/show_bug.cgi?id=1182441

https://bugzilla.suse.com/show_bug.cgi?id=1182442

https://bugzilla.suse.com/show_bug.cgi?id=1182443

https://bugzilla.suse.com/show_bug.cgi?id=1182444

https://bugzilla.suse.com/show_bug.cgi?id=1182445

https://bugzilla.suse.com/show_bug.cgi?id=1182446

https://bugzilla.suse.com/show_bug.cgi?id=1182447

https://bugzilla.suse.com/show_bug.cgi?id=1182449

https://bugzilla.suse.com/show_bug.cgi?id=1182454

https://bugzilla.suse.com/show_bug.cgi?id=1182455

https://bugzilla.suse.com/show_bug.cgi?id=1182456

https://bugzilla.suse.com/show_bug.cgi?id=1182457

https://bugzilla.suse.com/show_bug.cgi?id=1182458

https://bugzilla.suse.com/show_bug.cgi?id=1182459

https://bugzilla.suse.com/show_bug.cgi?id=1182460

https://bugzilla.suse.com/show_bug.cgi?id=1182461

https://bugzilla.suse.com/show_bug.cgi?id=1182462

https://bugzilla.suse.com/show_bug.cgi?id=1182463

https://bugzilla.suse.com/show_bug.cgi?id=1182464

https://bugzilla.suse.com/show_bug.cgi?id=1182465

https://bugzilla.suse.com/show_bug.cgi?id=1182466

https://bugzilla.suse.com/show_bug.cgi?id=1182485

https://bugzilla.suse.com/show_bug.cgi?id=1182489

https://bugzilla.suse.com/show_bug.cgi?id=1182490

https://bugzilla.suse.com/show_bug.cgi?id=1182507

https://bugzilla.suse.com/show_bug.cgi?id=1182547

https://bugzilla.suse.com/show_bug.cgi?id=1182558

https://bugzilla.suse.com/show_bug.cgi?id=1182560

https://bugzilla.suse.com/show_bug.cgi?id=1182561

https://bugzilla.suse.com/show_bug.cgi?id=1182571

https://bugzilla.suse.com/show_bug.cgi?id=1182599

https://bugzilla.suse.com/show_bug.cgi?id=1182602

https://bugzilla.suse.com/show_bug.cgi?id=1182626

https://bugzilla.suse.com/show_bug.cgi?id=1182650

https://bugzilla.suse.com/show_bug.cgi?id=1182672

https://bugzilla.suse.com/show_bug.cgi?id=1182676

https://bugzilla.suse.com/show_bug.cgi?id=1182683

https://bugzilla.suse.com/show_bug.cgi?id=1182684

https://bugzilla.suse.com/show_bug.cgi?id=1182686

https://bugzilla.suse.com/show_bug.cgi?id=1182770

https://bugzilla.suse.com/show_bug.cgi?id=1182798

https://bugzilla.suse.com/show_bug.cgi?id=1182800

https://bugzilla.suse.com/show_bug.cgi?id=1182801

https://bugzilla.suse.com/show_bug.cgi?id=1182854

https://bugzilla.suse.com/show_bug.cgi?id=1182856

https://www.suse.com/security/cve/CVE-2020-12362/

https://www.suse.com/security/cve/CVE-2020-12363/

https://www.suse.com/security/cve/CVE-2020-12364/

https://www.suse.com/security/cve/CVE-2020-12373/

https://www.suse.com/security/cve/CVE-2020-29368/

https://www.suse.com/security/cve/CVE-2020-29374/

https://www.suse.com/security/cve/CVE-2021-26930/

https://www.suse.com/security/cve/CVE-2021-26931/

https://www.suse.com/security/cve/CVE-2021-26932/

http://www.nessus.org/u?8a293bd0

Plugin Details

Severity: High

ID: 147579

File Name: suse_SU-2021-0741-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/10/2021

Updated: 3/12/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-29374

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

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

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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-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-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-obs-build, p-cpe:/a:novell:suse_linux:kernel-obs-build-debugsource, p-cpe:/a:novell:suse_linux:kernel-preempt, p-cpe:/a:novell:suse_linux:kernel-preempt-debuginfo, p-cpe:/a:novell:suse_linux:kernel-preempt-debugsource, p-cpe:/a:novell:suse_linux:kernel-preempt-devel, p-cpe:/a:novell:suse_linux:kernel-preempt-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default, p-cpe:/a:novell:suse_linux:reiserfs-kmp-default-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: 3/9/2021

Vulnerability Publication Date: 11/28/2020

Reference Information

CVE: CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-12373, CVE-2020-29368, CVE-2020-29374, CVE-2021-26930, CVE-2021-26931, CVE-2021-26932