SUSE SLES12 Security Update : kernel (SUSE-SU-2018:2374-1) (Foreshadow)

High Nessus Plugin ID 111837

Synopsis

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

Description

The SUSE Linux Enterprise 12 SP3 Azure kernel was updated to 4.4.143 to receive various security and bugfixes. The following security bugs were fixed :

- CVE-2018-3620: Local attackers on baremetal systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data. (bnc#1087081).

- CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system.
(bnc#1089343).

- CVE-2018-5391: A flaw in the IP packet reassembly could be used by remote attackers to consume CPU time (bnc#1103097).

- CVE-2018-5390: Linux kernel versions 4.9+ can be forced to make very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet which can lead to a denial of service (bnc#1102340).

- CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allowed attackers to cause a denial of service (use-after-free) (bnc#1103119).

- CVE-2017-18344: The timer_create syscall implementation in kernel/time/posix-timers.c didn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allowed userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE) (bnc#1102851 1103580).

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 Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-1606=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-1606=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1012382

https://bugzilla.suse.com/show_bug.cgi?id=1023711

https://bugzilla.suse.com/show_bug.cgi?id=1064232

https://bugzilla.suse.com/show_bug.cgi?id=1076110

https://bugzilla.suse.com/show_bug.cgi?id=1078216

https://bugzilla.suse.com/show_bug.cgi?id=1082653

https://bugzilla.suse.com/show_bug.cgi?id=1082979

https://bugzilla.suse.com/show_bug.cgi?id=1085042

https://bugzilla.suse.com/show_bug.cgi?id=1085536

https://bugzilla.suse.com/show_bug.cgi?id=1085657

https://bugzilla.suse.com/show_bug.cgi?id=1087081

https://bugzilla.suse.com/show_bug.cgi?id=1087659

https://bugzilla.suse.com/show_bug.cgi?id=1089343

https://bugzilla.suse.com/show_bug.cgi?id=1089525

https://bugzilla.suse.com/show_bug.cgi?id=1090123

https://bugzilla.suse.com/show_bug.cgi?id=1090340

https://bugzilla.suse.com/show_bug.cgi?id=1090435

https://bugzilla.suse.com/show_bug.cgi?id=1090888

https://bugzilla.suse.com/show_bug.cgi?id=1091107

https://bugzilla.suse.com/show_bug.cgi?id=1092001

https://bugzilla.suse.com/show_bug.cgi?id=1092207

https://bugzilla.suse.com/show_bug.cgi?id=1093777

https://bugzilla.suse.com/show_bug.cgi?id=1094120

https://bugzilla.suse.com/show_bug.cgi?id=1094244

https://bugzilla.suse.com/show_bug.cgi?id=1095453

https://bugzilla.suse.com/show_bug.cgi?id=1095643

https://bugzilla.suse.com/show_bug.cgi?id=1096790

https://bugzilla.suse.com/show_bug.cgi?id=1096978

https://bugzilla.suse.com/show_bug.cgi?id=1097034

https://bugzilla.suse.com/show_bug.cgi?id=1097501

https://bugzilla.suse.com/show_bug.cgi?id=1097771

https://bugzilla.suse.com/show_bug.cgi?id=1098599

https://bugzilla.suse.com/show_bug.cgi?id=1099306

https://bugzilla.suse.com/show_bug.cgi?id=1099713

https://bugzilla.suse.com/show_bug.cgi?id=1099792

https://bugzilla.suse.com/show_bug.cgi?id=1099810

https://bugzilla.suse.com/show_bug.cgi?id=1099858

https://bugzilla.suse.com/show_bug.cgi?id=1099918

https://bugzilla.suse.com/show_bug.cgi?id=1099966

https://bugzilla.suse.com/show_bug.cgi?id=1099993

https://bugzilla.suse.com/show_bug.cgi?id=1100089

https://bugzilla.suse.com/show_bug.cgi?id=1100132

https://bugzilla.suse.com/show_bug.cgi?id=1100340

https://bugzilla.suse.com/show_bug.cgi?id=1100843

https://bugzilla.suse.com/show_bug.cgi?id=1100930

https://bugzilla.suse.com/show_bug.cgi?id=1101296

https://bugzilla.suse.com/show_bug.cgi?id=1101331

https://bugzilla.suse.com/show_bug.cgi?id=1101658

https://bugzilla.suse.com/show_bug.cgi?id=1101789

https://bugzilla.suse.com/show_bug.cgi?id=1102188

https://bugzilla.suse.com/show_bug.cgi?id=1102197

https://bugzilla.suse.com/show_bug.cgi?id=1102203

https://bugzilla.suse.com/show_bug.cgi?id=1102205

https://bugzilla.suse.com/show_bug.cgi?id=1102207

https://bugzilla.suse.com/show_bug.cgi?id=1102211

https://bugzilla.suse.com/show_bug.cgi?id=1102214

https://bugzilla.suse.com/show_bug.cgi?id=1102215

https://bugzilla.suse.com/show_bug.cgi?id=1102340

https://bugzilla.suse.com/show_bug.cgi?id=1102394

https://bugzilla.suse.com/show_bug.cgi?id=1102683

https://bugzilla.suse.com/show_bug.cgi?id=1102851

https://bugzilla.suse.com/show_bug.cgi?id=1103097

https://bugzilla.suse.com/show_bug.cgi?id=1103119

https://bugzilla.suse.com/show_bug.cgi?id=1103580

https://bugzilla.suse.com/show_bug.cgi?id=1103717

https://bugzilla.suse.com/show_bug.cgi?id=1103745

https://bugzilla.suse.com/show_bug.cgi?id=1103884

https://bugzilla.suse.com/show_bug.cgi?id=1104174

https://bugzilla.suse.com/show_bug.cgi?id=997935

https://www.suse.com/security/cve/CVE-2017-18344/

https://www.suse.com/security/cve/CVE-2018-14734/

https://www.suse.com/security/cve/CVE-2018-3620/

https://www.suse.com/security/cve/CVE-2018-3646/

https://www.suse.com/security/cve/CVE-2018-5390/

https://www.suse.com/security/cve/CVE-2018-5391/

http://www.nessus.org/u?710f5d74

Plugin Details

Severity: High

ID: 111837

File Name: suse_SU-2018-2374-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2018/08/17

Updated: 2019/04/05

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.8

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 7.2

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-azure, p-cpe:/a:novell:suse_linux:kernel-azure-base, p-cpe:/a:novell:suse_linux:kernel-azure-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-azure-debuginfo, p-cpe:/a:novell:suse_linux:kernel-azure-debugsource, p-cpe:/a:novell:suse_linux:kernel-azure-devel, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/08/16

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2017-18344, CVE-2018-14734, CVE-2018-3620, CVE-2018-3646, CVE-2018-5390, CVE-2018-5391