Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2018:1221-1
Rating:	important
References:	bsc#1076537 bsc#1082299 bsc#1083125 bsc#1083242 bsc#1084536 bsc#1085331 bsc#1086162 bsc#1087088 bsc#1087209 bsc#1087260 bsc#1088147 bsc#1088260 bsc#1088261 bsc#1089608 bsc#1089752 bsc#1090643
Cross-References:	CVE-2017-0861 CVE-2017-11089 CVE-2017-13220 CVE-2017-18203 CVE-2018-10087 CVE-2018-10124 CVE-2018-1087 CVE-2018-7757 CVE-2018-8781 CVE-2018-8822 CVE-2018-8897
CVSS scores:	CVE-2017-0861 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2017-0861 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2017-11089 ( SUSE ): 6.4 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2017-11089 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2017-13220 ( SUSE ): 5.3 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H CVE-2017-13220 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2017-18203 ( SUSE ): 6.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2017-18203 ( NVD ): 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-10087 ( SUSE ): 4.0 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2018-10087 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-10124 ( SUSE ): 4.0 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2018-10124 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-1087 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-1087 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-7757 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-7757 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-8781 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8781 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8781 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8822 ( SUSE ): 6.4 CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H CVE-2018-8822 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8822 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8897 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-8897 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	Public Cloud Module 12 SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Server 12 LTSS 12 SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SUSE Linux Enterprise Server for SAP Applications 12 SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves 11 vulnerabilities and has five security fixes can now be installed.

Description:

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

The following security bugs were fixed:

• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
• CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bnc#1090643).
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• 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 1087209).
• CVE-2017-13220: An elevation of privilege vulnerability in the Upstream kernel bluez was fixed. (bnc#1076537).
• CVE-2017-11089: A buffer overread was observed in nl80211_set_station when user space application sends attribute NL80211_ATTR_LOCAL_MESH_POWER_MODE with data of size less than 4 bytes (bnc#1088261).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).

The following non-security bugs were fixed:

• Integrate fixes resulting from bsc#1088147 More info in the respective commit messages.
• KABI: x86/kaiser: properly align trampoline stack (bsc#1087260).
• kGraft: fix small race in reversion code (bsc#1083125).
• kabi/severities: Ignore kgr_shadow_* kABI changes
• kvm/x86: fix icebp instruction handling (bsc#1087088).
• livepatch: Allow to call a custom callback when freeing shadow variables (bsc#1082299 fate#313296).
• livepatch: Initialize shadow variables safely by a custom callback (bsc#1082299 fate#313296).
• x86/entry/64: Do not use IST entry for #BP stack (bsc#1087088).
• x86/kaiser: properly align trampoline stack (bsc#1087260).
• x86/retpoline: do not perform thunk calls in ring3 vsyscall code (bsc#1085331).

Special Instructions and Notes:

• Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• Public Cloud Module 12
  zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2018-844=1
• SUSE Linux Enterprise Server 12 LTSS 12
  zypper in -t patch SUSE-SLE-SERVER-12-2018-844=1

Package List:

• Public Cloud Module 12 (nosrc x86_64)
  • kernel-ec2-3.12.61-52.128.1
• Public Cloud Module 12 (x86_64)
  • kernel-ec2-debuginfo-3.12.61-52.128.1
  • kernel-ec2-debugsource-3.12.61-52.128.1
  • kernel-ec2-extra-3.12.61-52.128.1
  • kernel-ec2-extra-debuginfo-3.12.61-52.128.1
  • kernel-ec2-devel-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (nosrc ppc64le s390x x86_64)
  • kernel-default-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (ppc64le s390x x86_64)
  • kernel-default-base-3.12.61-52.128.1
  • kernel-default-debugsource-3.12.61-52.128.1
  • kernel-default-devel-3.12.61-52.128.1
  • kernel-default-debuginfo-3.12.61-52.128.1
  • kernel-syms-3.12.61-52.128.1
  • kernel-default-base-debuginfo-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (noarch)
  • kernel-devel-3.12.61-52.128.1
  • kernel-macros-3.12.61-52.128.1
  • kernel-source-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (s390x)
  • kernel-default-man-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (nosrc x86_64)
  • kernel-xen-3.12.61-52.128.1
• SUSE Linux Enterprise Server 12 LTSS 12 (x86_64)
  • kgraft-patch-3_12_61-52_128-default-1-1.3.1
  • kernel-xen-debuginfo-3.12.61-52.128.1
  • kernel-xen-base-3.12.61-52.128.1
  • kernel-xen-debugsource-3.12.61-52.128.1
  • kgraft-patch-3_12_61-52_128-xen-1-1.3.1
  • kernel-xen-base-debuginfo-3.12.61-52.128.1
  • kernel-xen-devel-3.12.61-52.128.1

References:

• https://www.suse.com/security/cve/CVE-2017-0861.html
• https://www.suse.com/security/cve/CVE-2017-11089.html
• https://www.suse.com/security/cve/CVE-2017-13220.html
• https://www.suse.com/security/cve/CVE-2017-18203.html
• https://www.suse.com/security/cve/CVE-2018-10087.html
• https://www.suse.com/security/cve/CVE-2018-10124.html
• https://www.suse.com/security/cve/CVE-2018-1087.html
• https://www.suse.com/security/cve/CVE-2018-7757.html
• https://www.suse.com/security/cve/CVE-2018-8781.html
• https://www.suse.com/security/cve/CVE-2018-8822.html
• https://www.suse.com/security/cve/CVE-2018-8897.html
• https://bugzilla.suse.com/show_bug.cgi?id=1076537
• https://bugzilla.suse.com/show_bug.cgi?id=1082299
• https://bugzilla.suse.com/show_bug.cgi?id=1083125
• https://bugzilla.suse.com/show_bug.cgi?id=1083242
• https://bugzilla.suse.com/show_bug.cgi?id=1084536
• https://bugzilla.suse.com/show_bug.cgi?id=1085331
• https://bugzilla.suse.com/show_bug.cgi?id=1086162
• https://bugzilla.suse.com/show_bug.cgi?id=1087088
• https://bugzilla.suse.com/show_bug.cgi?id=1087209
• https://bugzilla.suse.com/show_bug.cgi?id=1087260
• https://bugzilla.suse.com/show_bug.cgi?id=1088147
• https://bugzilla.suse.com/show_bug.cgi?id=1088260
• https://bugzilla.suse.com/show_bug.cgi?id=1088261
• https://bugzilla.suse.com/show_bug.cgi?id=1089608
• https://bugzilla.suse.com/show_bug.cgi?id=1089752
• https://bugzilla.suse.com/show_bug.cgi?id=1090643