Security update for the Linux Kernel (Live Patch 0 for SLE 12 SP4)

Announcement ID:	SUSE-SU-2019:1674-1
Rating:	important
References:	bsc#1133191 bsc#1135280 bsc#1136446 bsc#1136935 bsc#1137597
Cross-References:	CVE-2019-11085 CVE-2019-11477 CVE-2019-11478 CVE-2019-11487 CVE-2019-3846
CVSS scores:	CVE-2019-11085 ( SUSE ): 8.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2019-11085 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-11477 ( SUSE ): 8.2 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVE-2019-11477 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-11477 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-11478 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2019-11478 ( NVD ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2019-11487 ( SUSE ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-11487 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-11487 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2019-3846 ( SUSE ): 7.5 CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-3846 ( NVD ): 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-3846 ( NVD ): 8.0 CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 15 SUSE Linux Enterprise Live Patching 15 SUSE Linux Enterprise Live Patching 12-SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 15 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 15

An update that solves five vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.12.14-94_41 fixes several issues.

The following security issues were fixed:

• CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446).
• CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586).
• CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. (bsc#1137586)
• CVE-2019-11487: The Linux kernel allowed page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191).
• CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in Intel(R) i915 Graphics may allowed an authenticated user to potentially enable escalation of privilege via local access (bsc#1135280).

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:

• SUSE Linux Enterprise Live Patching 12-SP4
  zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2019-1674=1 SUSE-SLE-Live-Patching-12-SP4-2019-1679=1 SUSE-SLE-Live-Patching-12-SP4-2019-1666=1
• SUSE Linux Enterprise Live Patching 15
  zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-1579=1 SUSE-SLE-Module-Live-Patching-15-2019-1581=1 SUSE-SLE-Module-Live-Patching-15-2019-1582=1 SUSE-SLE-Module-Live-Patching-15-2019-1584=1 SUSE-SLE-Module-Live-Patching-15-2019-1585=1 SUSE-SLE-Module-Live-Patching-15-2019-1586=1 SUSE-SLE-Module-Live-Patching-15-2019-1583=1 SUSE-SLE-Module-Live-Patching-15-2019-1587=1

Package List:

• SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le x86_64)
  • kgraft-patch-4_12_14-95_6-default-3-2.1
  • kgraft-patch-4_12_14-94_41-default-5-2.13.1
  • kgraft-patch-4_12_14-94_41-default-debuginfo-5-2.13.1
  • kgraft-patch-SLE12-SP4_Update_0-debugsource-5-2.13.1
  • kgraft-patch-4_12_14-95_3-default-4-2.1
• SUSE Linux Enterprise Live Patching 15 (ppc64le x86_64)
  • kernel-livepatch-4_12_14-25_3-default-10-2.1
  • kernel-livepatch-4_12_14-25_16-default-6-2.1
  • kernel-livepatch-4_12_14-25_13-default-7-2.1
  • kernel-livepatch-4_12_14-25_6-default-debuginfo-9-2.1
  • kernel-livepatch-4_12_14-25_13-default-debuginfo-7-2.1
  • kernel-livepatch-4_12_14-25_16-default-debuginfo-6-2.1
  • kernel-livepatch-4_12_14-25_6-default-9-2.1
  • kernel-livepatch-4_12_14-25_25-default-debuginfo-4-2.1
  • kernel-livepatch-4_12_14-25_22-default-5-2.1
  • kernel-livepatch-4_12_14-25_3-default-debuginfo-10-2.1
  • kernel-livepatch-4_12_14-25_28-default-debuginfo-3-2.1
  • kernel-livepatch-4_12_14-25_25-default-4-2.1
  • kernel-livepatch-4_12_14-25_19-default-6-2.1
  • kernel-livepatch-4_12_14-25_22-default-debuginfo-5-2.1
  • kernel-livepatch-4_12_14-25_19-default-debuginfo-6-2.1
  • kernel-livepatch-4_12_14-25_28-default-3-2.1

References:

• https://www.suse.com/security/cve/CVE-2019-11085.html
• https://www.suse.com/security/cve/CVE-2019-11477.html
• https://www.suse.com/security/cve/CVE-2019-11478.html
• https://www.suse.com/security/cve/CVE-2019-11487.html
• https://www.suse.com/security/cve/CVE-2019-3846.html
• https://bugzilla.suse.com/show_bug.cgi?id=1133191
• https://bugzilla.suse.com/show_bug.cgi?id=1135280
• https://bugzilla.suse.com/show_bug.cgi?id=1136446
• https://bugzilla.suse.com/show_bug.cgi?id=1136935
• https://bugzilla.suse.com/show_bug.cgi?id=1137597