SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0095-1)

High Nessus Plugin ID 121208

Synopsis

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

Description

The SUSE Linux Enterprise 12 SP3 Azure kernel was updated to 4.4.162 to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2018-18281: The mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).

CVE-2018-18710: An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658 (bnc#1113751).

CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandled ATTR_REPLACE operations with conversion of an attr from short to long form (bnc#1105025).

CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).

CVE-2018-9516: In hid_debug_events_read of drivers/hid/hid-debug.c, there is a possible out of bounds write due to a missing bounds check.
This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
(bnc#1108498).

CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack-based buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829).

CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bnc#1108399).

CVE-2018-16597: Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem (bnc#1106512).

CVE-2018-14613: There is an invalid pointer dereference in io_ctl_map_page() when mounting and operating a crafted btrfs image, because of a lack of block group item validation in check_leaf_item in fs/btrfs/tree-checker.c (bnc#1102896).

CVE-2018-14617: There is a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory (bnc#1102870).

CVE-2018-16276: Local attackers could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges (bnc#1106095 bnc#1115593).

CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1087209).

CVE-2018-7480: The blkcg_init_queue function in block/blk-cgroup.c allowed local users to cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation failure (bnc#1082863).

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 Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2019-95=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1011920

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

https://bugzilla.suse.com/show_bug.cgi?id=1012422

https://bugzilla.suse.com/show_bug.cgi?id=1020645

https://bugzilla.suse.com/show_bug.cgi?id=1031392

https://bugzilla.suse.com/show_bug.cgi?id=1035053

https://bugzilla.suse.com/show_bug.cgi?id=1042422

https://bugzilla.suse.com/show_bug.cgi?id=1043591

https://bugzilla.suse.com/show_bug.cgi?id=1044189

https://bugzilla.suse.com/show_bug.cgi?id=1048129

https://bugzilla.suse.com/show_bug.cgi?id=1050431

https://bugzilla.suse.com/show_bug.cgi?id=1050549

https://bugzilla.suse.com/show_bug.cgi?id=1053043

https://bugzilla.suse.com/show_bug.cgi?id=1054239

https://bugzilla.suse.com/show_bug.cgi?id=1057199

https://bugzilla.suse.com/show_bug.cgi?id=1062303

https://bugzilla.suse.com/show_bug.cgi?id=1063026

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

https://bugzilla.suse.com/show_bug.cgi?id=1065726

https://bugzilla.suse.com/show_bug.cgi?id=1066223

https://bugzilla.suse.com/show_bug.cgi?id=1067906

https://bugzilla.suse.com/show_bug.cgi?id=1073579

https://bugzilla.suse.com/show_bug.cgi?id=1076393

https://bugzilla.suse.com/show_bug.cgi?id=1078788

https://bugzilla.suse.com/show_bug.cgi?id=1079524

https://bugzilla.suse.com/show_bug.cgi?id=1082519

https://bugzilla.suse.com/show_bug.cgi?id=1082863

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

https://bugzilla.suse.com/show_bug.cgi?id=1083215

https://bugzilla.suse.com/show_bug.cgi?id=1083527

https://bugzilla.suse.com/show_bug.cgi?id=1084427

https://bugzilla.suse.com/show_bug.cgi?id=1084536

https://bugzilla.suse.com/show_bug.cgi?id=1084760

https://bugzilla.suse.com/show_bug.cgi?id=1087209

https://bugzilla.suse.com/show_bug.cgi?id=1088087

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

https://bugzilla.suse.com/show_bug.cgi?id=1090535

https://bugzilla.suse.com/show_bug.cgi?id=1091158

https://bugzilla.suse.com/show_bug.cgi?id=1093118

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

https://bugzilla.suse.com/show_bug.cgi?id=1094555

https://bugzilla.suse.com/show_bug.cgi?id=1094562

https://bugzilla.suse.com/show_bug.cgi?id=1094825

https://bugzilla.suse.com/show_bug.cgi?id=1095344

https://bugzilla.suse.com/show_bug.cgi?id=1095753

https://bugzilla.suse.com/show_bug.cgi?id=1095805

https://bugzilla.suse.com/show_bug.cgi?id=1096052

https://bugzilla.suse.com/show_bug.cgi?id=1096547

https://bugzilla.suse.com/show_bug.cgi?id=1098050

https://bugzilla.suse.com/show_bug.cgi?id=1098996

https://bugzilla.suse.com/show_bug.cgi?id=1099597

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

https://bugzilla.suse.com/show_bug.cgi?id=1101555

https://bugzilla.suse.com/show_bug.cgi?id=1102495

https://bugzilla.suse.com/show_bug.cgi?id=1102715

https://bugzilla.suse.com/show_bug.cgi?id=1102870

https://bugzilla.suse.com/show_bug.cgi?id=1102875

https://bugzilla.suse.com/show_bug.cgi?id=1102877

https://bugzilla.suse.com/show_bug.cgi?id=1102879

https://bugzilla.suse.com/show_bug.cgi?id=1102882

https://bugzilla.suse.com/show_bug.cgi?id=1102896

https://bugzilla.suse.com/show_bug.cgi?id=1103156

https://bugzilla.suse.com/show_bug.cgi?id=1103269

https://bugzilla.suse.com/show_bug.cgi?id=1103308

https://bugzilla.suse.com/show_bug.cgi?id=1103405

https://bugzilla.suse.com/show_bug.cgi?id=1104124

https://bugzilla.suse.com/show_bug.cgi?id=1105025

https://bugzilla.suse.com/show_bug.cgi?id=1105428

https://bugzilla.suse.com/show_bug.cgi?id=1105795

https://bugzilla.suse.com/show_bug.cgi?id=1105931

https://bugzilla.suse.com/show_bug.cgi?id=1106095

https://bugzilla.suse.com/show_bug.cgi?id=1106105

https://bugzilla.suse.com/show_bug.cgi?id=1106110

https://bugzilla.suse.com/show_bug.cgi?id=1106240

https://bugzilla.suse.com/show_bug.cgi?id=1106293

https://bugzilla.suse.com/show_bug.cgi?id=1106359

https://bugzilla.suse.com/show_bug.cgi?id=1106434

https://bugzilla.suse.com/show_bug.cgi?id=1106512

https://bugzilla.suse.com/show_bug.cgi?id=1106594

https://bugzilla.suse.com/show_bug.cgi?id=1106913

https://bugzilla.suse.com/show_bug.cgi?id=1106929

https://bugzilla.suse.com/show_bug.cgi?id=1106934

https://bugzilla.suse.com/show_bug.cgi?id=1107060

https://bugzilla.suse.com/show_bug.cgi?id=1107299

https://bugzilla.suse.com/show_bug.cgi?id=1107318

https://bugzilla.suse.com/show_bug.cgi?id=1107535

https://bugzilla.suse.com/show_bug.cgi?id=1107829

https://bugzilla.suse.com/show_bug.cgi?id=1107870

https://bugzilla.suse.com/show_bug.cgi?id=1107924

https://bugzilla.suse.com/show_bug.cgi?id=1108096

https://bugzilla.suse.com/show_bug.cgi?id=1108170

https://bugzilla.suse.com/show_bug.cgi?id=1108240

https://bugzilla.suse.com/show_bug.cgi?id=1108281

https://bugzilla.suse.com/show_bug.cgi?id=1108315

https://bugzilla.suse.com/show_bug.cgi?id=1108377

https://bugzilla.suse.com/show_bug.cgi?id=1108399

https://bugzilla.suse.com/show_bug.cgi?id=1108498

https://bugzilla.suse.com/show_bug.cgi?id=1108803

https://bugzilla.suse.com/show_bug.cgi?id=1108823

https://bugzilla.suse.com/show_bug.cgi?id=1109038

https://bugzilla.suse.com/show_bug.cgi?id=1109158

https://bugzilla.suse.com/show_bug.cgi?id=1109333

https://bugzilla.suse.com/show_bug.cgi?id=1109336

https://bugzilla.suse.com/show_bug.cgi?id=1109337

https://bugzilla.suse.com/show_bug.cgi?id=1109441

https://bugzilla.suse.com/show_bug.cgi?id=1109772

https://bugzilla.suse.com/show_bug.cgi?id=1109784

https://bugzilla.suse.com/show_bug.cgi?id=1109806

https://bugzilla.suse.com/show_bug.cgi?id=1109818

https://bugzilla.suse.com/show_bug.cgi?id=1109907

https://bugzilla.suse.com/show_bug.cgi?id=1109919

https://bugzilla.suse.com/show_bug.cgi?id=1109923

https://bugzilla.suse.com/show_bug.cgi?id=1110006

https://bugzilla.suse.com/show_bug.cgi?id=1110297

https://bugzilla.suse.com/show_bug.cgi?id=1110337

https://bugzilla.suse.com/show_bug.cgi?id=1110363

https://bugzilla.suse.com/show_bug.cgi?id=1110468

https://bugzilla.suse.com/show_bug.cgi?id=1110600

https://bugzilla.suse.com/show_bug.cgi?id=1110601

https://bugzilla.suse.com/show_bug.cgi?id=1110602

https://bugzilla.suse.com/show_bug.cgi?id=1110603

https://bugzilla.suse.com/show_bug.cgi?id=1110604

https://bugzilla.suse.com/show_bug.cgi?id=1110605

https://bugzilla.suse.com/show_bug.cgi?id=1110606

https://bugzilla.suse.com/show_bug.cgi?id=1110611

https://bugzilla.suse.com/show_bug.cgi?id=1110612

https://bugzilla.suse.com/show_bug.cgi?id=1110613

https://bugzilla.suse.com/show_bug.cgi?id=1110614

https://bugzilla.suse.com/show_bug.cgi?id=1110615

https://bugzilla.suse.com/show_bug.cgi?id=1110616

https://bugzilla.suse.com/show_bug.cgi?id=1110618

https://bugzilla.suse.com/show_bug.cgi?id=1110619

https://bugzilla.suse.com/show_bug.cgi?id=1110930

https://bugzilla.suse.com/show_bug.cgi?id=1111363

https://bugzilla.suse.com/show_bug.cgi?id=1111516

https://bugzilla.suse.com/show_bug.cgi?id=1111870

https://bugzilla.suse.com/show_bug.cgi?id=1112007

https://bugzilla.suse.com/show_bug.cgi?id=1112262

https://bugzilla.suse.com/show_bug.cgi?id=1112263

https://bugzilla.suse.com/show_bug.cgi?id=1112894

https://bugzilla.suse.com/show_bug.cgi?id=1112902

https://bugzilla.suse.com/show_bug.cgi?id=1112903

https://bugzilla.suse.com/show_bug.cgi?id=1112905

https://bugzilla.suse.com/show_bug.cgi?id=1113667

https://bugzilla.suse.com/show_bug.cgi?id=1113751

https://bugzilla.suse.com/show_bug.cgi?id=1113766

https://bugzilla.suse.com/show_bug.cgi?id=1113769

https://bugzilla.suse.com/show_bug.cgi?id=1114178

https://bugzilla.suse.com/show_bug.cgi?id=1114229

https://bugzilla.suse.com/show_bug.cgi?id=1114648

https://bugzilla.suse.com/show_bug.cgi?id=1115593

https://bugzilla.suse.com/show_bug.cgi?id=981083

https://bugzilla.suse.com/show_bug.cgi?id=997172

https://www.suse.com/security/cve/CVE-2018-14613/

https://www.suse.com/security/cve/CVE-2018-14617/

https://www.suse.com/security/cve/CVE-2018-14633/

https://www.suse.com/security/cve/CVE-2018-16276/

https://www.suse.com/security/cve/CVE-2018-16597/

https://www.suse.com/security/cve/CVE-2018-17182/

https://www.suse.com/security/cve/CVE-2018-18281/

https://www.suse.com/security/cve/CVE-2018-18386/

https://www.suse.com/security/cve/CVE-2018-18690/

https://www.suse.com/security/cve/CVE-2018-18710/

https://www.suse.com/security/cve/CVE-2018-7480/

https://www.suse.com/security/cve/CVE-2018-7757/

https://www.suse.com/security/cve/CVE-2018-9516/

http://www.nessus.org/u?fa701622

Plugin Details

Severity: High

ID: 121208

File Name: suse_SU-2019-0095-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2019/01/16

Updated: 2019/04/02

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 8.3

Temporal Score: 6.5

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

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

CVSS v3.0

Base Score: 7.8

Temporal Score: 7

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:P/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, p-cpe:/a:novell:suse_linux:kernel-syms-azure, cpe:/o:novell:suse_linux:12

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/01/15

Reference Information

CVE: CVE-2018-10940, CVE-2018-14613, CVE-2018-14617, CVE-2018-14633, CVE-2018-16276, CVE-2018-16597, CVE-2018-16658, CVE-2018-17182, CVE-2018-18281, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710, CVE-2018-7480, CVE-2018-7757, CVE-2018-9516