SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1693-1)

high Nessus Plugin ID 138283
New! Plugin Severity Now Using CVSS v3

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Synopsis

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

Description

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-10768: The prctl() function could be used to enable indirect branch speculation even after it has been disabled. (bnc#1172783)

CVE-2020-10766: A bug in the logic handling could allow an attacker with a local account to disable SSBD protection. (bnc#1172781)

CVE-2020-10767: A IBPB would be disabled when STIBP was not available or when Enhanced Indirect Branch Restricted Speculation (IBRS) was available. This is unexpected behaviour could leave the system open to a spectre v2 style attack (bnc#1172782)

CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii was called several times in a row (bnc#1172775)

CVE-2019-20810: go7007_snd_init did not call snd_card_free for a failure path, which caused a memory leak (bnc#1172458)

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 Linux Enterprise Workstation Extension 12-SP5 :

zypper in -t patch SUSE-SLE-WE-12-SP5-2020-1693=1

SUSE Linux Enterprise Software Development Kit 12-SP5 :

zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-1693=1

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-1693=1

SUSE Linux Enterprise Live Patching 12-SP5 :

zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2020-1693=1

SUSE Linux Enterprise High Availability 12-SP5 :

zypper in -t patch SUSE-SLE-HA-12-SP5-2020-1693=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1051510

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

https://bugzilla.suse.com/show_bug.cgi?id=1071995

https://bugzilla.suse.com/show_bug.cgi?id=1085030

https://bugzilla.suse.com/show_bug.cgi?id=1111666

https://bugzilla.suse.com/show_bug.cgi?id=1113956

https://bugzilla.suse.com/show_bug.cgi?id=1114279

https://bugzilla.suse.com/show_bug.cgi?id=1144333

https://bugzilla.suse.com/show_bug.cgi?id=1148868

https://bugzilla.suse.com/show_bug.cgi?id=1158983

https://bugzilla.suse.com/show_bug.cgi?id=1161016

https://bugzilla.suse.com/show_bug.cgi?id=1162063

https://bugzilla.suse.com/show_bug.cgi?id=1166985

https://bugzilla.suse.com/show_bug.cgi?id=1168081

https://bugzilla.suse.com/show_bug.cgi?id=1169194

https://bugzilla.suse.com/show_bug.cgi?id=1170592

https://bugzilla.suse.com/show_bug.cgi?id=1171904

https://bugzilla.suse.com/show_bug.cgi?id=1172458

https://bugzilla.suse.com/show_bug.cgi?id=1172472

https://bugzilla.suse.com/show_bug.cgi?id=1172537

https://bugzilla.suse.com/show_bug.cgi?id=1172538

https://bugzilla.suse.com/show_bug.cgi?id=1172759

https://bugzilla.suse.com/show_bug.cgi?id=1172775

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://bugzilla.suse.com/show_bug.cgi?id=1172884

https://www.suse.com/security/cve/CVE-2019-20810/

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/

https://www.suse.com/security/cve/CVE-2020-13974/

http://www.nessus.org/u?573f6ac8

Plugin Details

Severity: High

ID: 138283

File Name: suse_SU-2020-1693-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 7/9/2020

Updated: 7/14/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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-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-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, 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: 6/19/2020

Vulnerability Publication Date: 6/3/2020

Reference Information

CVE: CVE-2019-20810, CVE-2020-10766, CVE-2020-10767, CVE-2020-10768, CVE-2020-13974