SUSE SLES12 Security Update : kernel (SUSE-SU-2018:3084-1)

High Nessus Plugin ID 118034

Synopsis

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

Description

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes.

CVE-2018-10853: A flaw was found in the way the KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest (bnc#1097104).

CVE-2018-10876: A flaw was found in Linux kernel in the ext4 filesystem code. A use-after-free is possible in ext4_ext_remove_space() function when mounting and operating a crafted ext4 image. (bnc#1099811)

CVE-2018-10877: Linux kernel ext4 filesystem is vulnerable to an out-of-bound access in the ext4_ext_drop_refs() function when operating on a crafted ext4 filesystem image. (bnc#1099846)

CVE-2018-10878: A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write and a denial of service or unspecified other impact is possible by mounting and operating a crafted ext4 filesystem image. (bnc#1099813)

CVE-2018-10879: A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause a use-after-free in ext4_xattr_set_entry function and a denial of service or unspecified other impact may occur by renaming a file in a crafted ext4 filesystem image. (bnc#1099844)

CVE-2018-10880: Linux kernel is vulnerable to a stack-out-of-bounds write in the ext4 filesystem code when mounting and writing to a crafted ext4 image in ext4_update_inline_data(). An attacker could use this to cause a system crash and a denial of service. (bnc#1099845)

CVE-2018-10881: A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound access in ext4_get_group_info function, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.
(bnc#1099864)

CVE-2018-10882: A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound write in in fs/jbd2/transaction.c code, a denial of service, and a system crash by unmounting a crafted ext4 filesystem image. (bnc#1099849)

CVE-2018-10883: A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.
(bnc#1099863)

CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation (bnc#1105322).

CVE-2018-10938: A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw (bnc#1106016).

CVE-2018-10940: The cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c allowed local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory (bnc#1092903).

CVE-2018-12896: An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically made the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls (bnc#1099922).

CVE-2018-13093: There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation (bnc#1100001).

CVE-2018-13094: An OOPS may occur for a corrupted xfs image after xfs_da_shrink_inode() is called with a NULL bp (bnc#1100000).

CVE-2018-13095: A denial of service (memory corruption and BUG) can occur for a corrupted xfs image upon encountering an inode that is in extent format, but has more extents than fit in the inode fork (bnc#1099999).

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-2018-14678: The xen_failsafe_callback entry point in arch/x86/entry/entry_64.S did not properly maintain RBX, which allowed local users to cause a denial of service (uninitialized memory usage and system crash). Within Xen, 64-bit x86 PV Linux guest OS users can trigger a guest OS crash or possibly gain privileges (bnc#1102715).

CVE-2018-15572: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c did not always fill RSB upon a context switch, which made it easier for attackers to conduct userspace-userspace spectreRSB attacks (bnc#1102517 bnc#1105296).

CVE-2018-15594: arch/x86/kernel/paravirt.c mishandled certain indirect calls, which made it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests (bnc#1105348).

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).

CVE-2018-16658: An information leak in cdrom_ioctl_drive_status 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 (bnc#1107689).

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-2018-6554: Memory leak in the irda_bind function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c allowed local users to cause a denial of service (memory consumption) by repeatedly binding an AF_IRDA socket (bnc#1106509).

CVE-2018-6555: The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c allowed local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket (bnc#1106511).

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#1084536).

CVE-2018-9363: A buffer overflow in bluetooth HID report processing could be used by malicious bluetooth devices to crash the kernel or potentially execute code (bnc#1105292). The following security bugs were fixed :

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 OpenStack Cloud 7:zypper in -t patch SUSE-OpenStack-Cloud-7-2018-2188=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch SUSE-SLE-SAP-12-SP2-2018-2188=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-2188=1

SUSE Linux Enterprise High Availability 12-SP2:zypper in -t patch SUSE-SLE-HA-12-SP2-2018-2188=1

SUSE Enterprise Storage 4:zypper in -t patch SUSE-Storage-4-2018-2188=1

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-2188=1

See Also

https://bugzilla.suse.com/1012382

https://bugzilla.suse.com/1042286

https://bugzilla.suse.com/1062604

https://bugzilla.suse.com/1064232

https://bugzilla.suse.com/1065364

https://bugzilla.suse.com/1082519

https://bugzilla.suse.com/1082863

https://bugzilla.suse.com/1084536

https://bugzilla.suse.com/1085042

https://bugzilla.suse.com/1088810

https://bugzilla.suse.com/1089066

https://bugzilla.suse.com/1092903

https://bugzilla.suse.com/1094466

https://bugzilla.suse.com/1095344

https://bugzilla.suse.com/1096547

https://bugzilla.suse.com/1097104

https://bugzilla.suse.com/1099597

https://bugzilla.suse.com/1099811

https://bugzilla.suse.com/1099813

https://bugzilla.suse.com/1099844

https://bugzilla.suse.com/1099845

https://bugzilla.suse.com/1099846

https://bugzilla.suse.com/1099849

https://bugzilla.suse.com/1099863

https://bugzilla.suse.com/1099864

https://bugzilla.suse.com/1099922

https://bugzilla.suse.com/1099993

https://bugzilla.suse.com/1099999

https://bugzilla.suse.com/1100000

https://bugzilla.suse.com/1100001

https://bugzilla.suse.com/1100152

https://bugzilla.suse.com/1102517

https://bugzilla.suse.com/1102715

https://bugzilla.suse.com/1102870

https://bugzilla.suse.com/1103445

https://bugzilla.suse.com/1104319

https://bugzilla.suse.com/1104495

https://bugzilla.suse.com/1105292

https://bugzilla.suse.com/1105296

https://bugzilla.suse.com/1105322

https://bugzilla.suse.com/1105348

https://bugzilla.suse.com/1105396

https://bugzilla.suse.com/1105536

https://bugzilla.suse.com/1106016

https://bugzilla.suse.com/1106095

https://bugzilla.suse.com/1106369

https://bugzilla.suse.com/1106509

https://bugzilla.suse.com/1106511

https://bugzilla.suse.com/1106512

https://bugzilla.suse.com/1106594

https://bugzilla.suse.com/1107689

https://bugzilla.suse.com/1107735

https://bugzilla.suse.com/1107966

https://bugzilla.suse.com/1108239

https://bugzilla.suse.com/1108399

https://bugzilla.suse.com/1109333

https://www.suse.com/security/cve/CVE-2018-10853.html

https://www.suse.com/security/cve/CVE-2018-10876.html

https://www.suse.com/security/cve/CVE-2018-10877.html

https://www.suse.com/security/cve/CVE-2018-10878.html

https://www.suse.com/security/cve/CVE-2018-10879.html

https://www.suse.com/security/cve/CVE-2018-10880.html

https://www.suse.com/security/cve/CVE-2018-10881.html

https://www.suse.com/security/cve/CVE-2018-10882.html

https://www.suse.com/security/cve/CVE-2018-10883.html

https://www.suse.com/security/cve/CVE-2018-10902.html

https://www.suse.com/security/cve/CVE-2018-10938.html

https://www.suse.com/security/cve/CVE-2018-10940.html

https://www.suse.com/security/cve/CVE-2018-12896.html

https://www.suse.com/security/cve/CVE-2018-13093.html

https://www.suse.com/security/cve/CVE-2018-13094.html

https://www.suse.com/security/cve/CVE-2018-13095.html

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

https://www.suse.com/security/cve/CVE-2018-14678.html

https://www.suse.com/security/cve/CVE-2018-15572.html

https://www.suse.com/security/cve/CVE-2018-15594.html

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

https://www.suse.com/security/cve/CVE-2018-16658.html

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

https://www.suse.com/security/cve/CVE-2018-6554.html

https://www.suse.com/security/cve/CVE-2018-6555.html

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

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

https://www.suse.com/security/cve/CVE-2018-9363.html

http://www.nessus.org/u?0c6b029b

Plugin Details

Severity: High

ID: 118034

File Name: suse_SU-2018-3084-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/10/10

Modified: 2018/10/16

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.2

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

CVSSv3

Base Score: 7.8

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

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-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_121-92_95-default, p-cpe:/a:novell:suse_linux:lttng-modules, p-cpe:/a:novell:suse_linux:lttng-modules-debugsource, p-cpe:/a:novell:suse_linux:lttng-modules-kmp-default, p-cpe:/a:novell:suse_linux:lttng-modules-kmp-default-debuginfo, cpe:/o:novell:suse_linux:12

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

Patch Publication Date: 2018/10/09

Reference Information

CVE: CVE-2018-10853, CVE-2018-10876, CVE-2018-10877, CVE-2018-10878, CVE-2018-10879, CVE-2018-10880, CVE-2018-10881, CVE-2018-10882, CVE-2018-10883, CVE-2018-10902, CVE-2018-10938, CVE-2018-10940, CVE-2018-12896, CVE-2018-13093, CVE-2018-13094, CVE-2018-13095, CVE-2018-14617, CVE-2018-14678, CVE-2018-15572, CVE-2018-15594, CVE-2018-16276, CVE-2018-16658, CVE-2018-17182, CVE-2018-6554, CVE-2018-6555, CVE-2018-7480, CVE-2018-7757, CVE-2018-9363