SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1146-1)

medium Nessus Plugin ID 136168
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VPR Score: 5.9

Synopsis

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

Description

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).

CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).

CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).

CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).

CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

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 15-SP1:zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2020-1146=1

SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1146=1

SUSE Linux Enterprise Module for Live Patching 15-SP1:zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2020-1146=1

SUSE Linux Enterprise Module for Legacy Software 15-SP1:zypper in -t patch SUSE-SLE-Module-Legacy-15-SP1-2020-1146=1

SUSE Linux Enterprise Module for Development Tools 15-SP1:zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP1-2020-1146=1

SUSE Linux Enterprise Module for Basesystem 15-SP1:zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1146=1

SUSE Linux Enterprise High Availability 15-SP1:zypper in -t patch SUSE-SLE-Product-HA-15-SP1-2020-1146=1

See Also

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

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=1071995

https://bugzilla.suse.com/show_bug.cgi?id=1083647

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

https://bugzilla.suse.com/show_bug.cgi?id=1109911

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=1118338

https://bugzilla.suse.com/show_bug.cgi?id=1120386

https://bugzilla.suse.com/show_bug.cgi?id=1137325

https://bugzilla.suse.com/show_bug.cgi?id=1142685

https://bugzilla.suse.com/show_bug.cgi?id=1145051

https://bugzilla.suse.com/show_bug.cgi?id=1145929

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

https://bugzilla.suse.com/show_bug.cgi?id=1157424

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

https://bugzilla.suse.com/show_bug.cgi?id=1159037

https://bugzilla.suse.com/show_bug.cgi?id=1159198

https://bugzilla.suse.com/show_bug.cgi?id=1159199

https://bugzilla.suse.com/show_bug.cgi?id=1161561

https://bugzilla.suse.com/show_bug.cgi?id=1161951

https://bugzilla.suse.com/show_bug.cgi?id=1162171

https://bugzilla.suse.com/show_bug.cgi?id=1163403

https://bugzilla.suse.com/show_bug.cgi?id=1163897

https://bugzilla.suse.com/show_bug.cgi?id=1164284

https://bugzilla.suse.com/show_bug.cgi?id=1164777

https://bugzilla.suse.com/show_bug.cgi?id=1164780

https://bugzilla.suse.com/show_bug.cgi?id=1164893

https://bugzilla.suse.com/show_bug.cgi?id=1165019

https://bugzilla.suse.com/show_bug.cgi?id=1165182

https://bugzilla.suse.com/show_bug.cgi?id=1165185

https://bugzilla.suse.com/show_bug.cgi?id=1165211

https://bugzilla.suse.com/show_bug.cgi?id=1165823

https://bugzilla.suse.com/show_bug.cgi?id=1165949

https://bugzilla.suse.com/show_bug.cgi?id=1166780

https://bugzilla.suse.com/show_bug.cgi?id=1166860

https://bugzilla.suse.com/show_bug.cgi?id=1166861

https://bugzilla.suse.com/show_bug.cgi?id=1166862

https://bugzilla.suse.com/show_bug.cgi?id=1166864

https://bugzilla.suse.com/show_bug.cgi?id=1166866

https://bugzilla.suse.com/show_bug.cgi?id=1166867

https://bugzilla.suse.com/show_bug.cgi?id=1166868

https://bugzilla.suse.com/show_bug.cgi?id=1166870

https://bugzilla.suse.com/show_bug.cgi?id=1166940

https://bugzilla.suse.com/show_bug.cgi?id=1166982

https://bugzilla.suse.com/show_bug.cgi?id=1167005

https://bugzilla.suse.com/show_bug.cgi?id=1167216

https://bugzilla.suse.com/show_bug.cgi?id=1167288

https://bugzilla.suse.com/show_bug.cgi?id=1167290

https://bugzilla.suse.com/show_bug.cgi?id=1167316

https://bugzilla.suse.com/show_bug.cgi?id=1167421

https://bugzilla.suse.com/show_bug.cgi?id=1167423

https://bugzilla.suse.com/show_bug.cgi?id=1167627

https://bugzilla.suse.com/show_bug.cgi?id=1167629

https://bugzilla.suse.com/show_bug.cgi?id=1168075

https://bugzilla.suse.com/show_bug.cgi?id=1168202

https://bugzilla.suse.com/show_bug.cgi?id=1168273

https://bugzilla.suse.com/show_bug.cgi?id=1168276

https://bugzilla.suse.com/show_bug.cgi?id=1168295

https://bugzilla.suse.com/show_bug.cgi?id=1168367

https://bugzilla.suse.com/show_bug.cgi?id=1168424

https://bugzilla.suse.com/show_bug.cgi?id=1168443

https://bugzilla.suse.com/show_bug.cgi?id=1168486

https://bugzilla.suse.com/show_bug.cgi?id=1168552

https://bugzilla.suse.com/show_bug.cgi?id=1168760

https://bugzilla.suse.com/show_bug.cgi?id=1168762

https://bugzilla.suse.com/show_bug.cgi?id=1168763

https://bugzilla.suse.com/show_bug.cgi?id=1168764

https://bugzilla.suse.com/show_bug.cgi?id=1168765

https://bugzilla.suse.com/show_bug.cgi?id=1168829

https://bugzilla.suse.com/show_bug.cgi?id=1168854

https://bugzilla.suse.com/show_bug.cgi?id=1168881

https://bugzilla.suse.com/show_bug.cgi?id=1168884

https://bugzilla.suse.com/show_bug.cgi?id=1168952

https://bugzilla.suse.com/show_bug.cgi?id=1169013

https://bugzilla.suse.com/show_bug.cgi?id=1169057

https://bugzilla.suse.com/show_bug.cgi?id=1169307

https://bugzilla.suse.com/show_bug.cgi?id=1169308

https://bugzilla.suse.com/show_bug.cgi?id=1169390

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

https://bugzilla.suse.com/show_bug.cgi?id=1169625

https://www.suse.com/security/cve/CVE-2019-19770/

https://www.suse.com/security/cve/CVE-2019-3701/

https://www.suse.com/security/cve/CVE-2019-9458/

https://www.suse.com/security/cve/CVE-2020-10942/

https://www.suse.com/security/cve/CVE-2020-11494/

https://www.suse.com/security/cve/CVE-2020-11669/

https://www.suse.com/security/cve/CVE-2020-8834/

http://www.nessus.org/u?c3bcebc1

Plugin Details

Severity: Medium

ID: 136168

File Name: suse_SU-2020-1146-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 4/30/2020

Updated: 1/13/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS v2.0

Base Score: 6.4

Temporal Score: 4.7

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

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

CVSS v3.0

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-debug, p-cpe:/a:novell:suse_linux:kernel-debug-base, p-cpe:/a:novell:suse_linux:kernel-debug-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-debugsource, p-cpe:/a:novell:suse_linux:kernel-debug-devel, p-cpe:/a:novell:suse_linux:kernel-debug-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-debug-livepatch-devel, 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-livepatch, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-kvmsmall, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-base, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-debugsource, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-devel, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-kvmsmall-livepatch-devel, 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-obs-qa, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-vanilla, p-cpe:/a:novell:suse_linux:kernel-vanilla-base, p-cpe:/a:novell:suse_linux:kernel-vanilla-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-debugsource, p-cpe:/a:novell:suse_linux:kernel-vanilla-devel, p-cpe:/a:novell:suse_linux:kernel-vanilla-devel-debuginfo, p-cpe:/a:novell:suse_linux:kernel-vanilla-livepatch-devel, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debuginfo, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-debugsource, p-cpe:/a:novell:suse_linux:kernel-zfcpdump-man, p-cpe:/a:novell:suse_linux:kselftests-kmp-default, p-cpe:/a:novell:suse_linux:kselftests-kmp-default-debuginfo, 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: 4/29/2020

Vulnerability Publication Date: 1/3/2019

Reference Information

CVE: CVE-2019-19770, CVE-2019-3701, CVE-2019-9458, CVE-2020-10942, CVE-2020-11494, CVE-2020-11669, CVE-2020-8834