Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2019:1534-1
Rating:	important
References:	bsc#1099658 bsc#1106284 bsc#1110785 bsc#1113769 bsc#1120843 bsc#1120885 bsc#1131543 bsc#1131565 bsc#1132374 bsc#1132472 bsc#1134537 bsc#1134596 bsc#1134848 bsc#1135281 bsc#1135603 bsc#1136424 bsc#1136446 bsc#1136586 bsc#1136935 bsc#1137586
Cross-References:	CVE-2018-17972 CVE-2018-7191 CVE-2019-11190 CVE-2019-11477 CVE-2019-11478 CVE-2019-11479 CVE-2019-11815 CVE-2019-11833 CVE-2019-11884 CVE-2019-12382 CVE-2019-3846 CVE-2019-5489
CVSS scores:	CVE-2018-17972 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2018-7191 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2018-7191 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2019-11190 ( SUSE ): 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-11190 ( NVD ): 4.7 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N 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-2019-11479 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-11479 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2019-11479 ( NVD ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2019-11815 ( SUSE ): 6.4 CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2019-11815 ( NVD ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-11815 ( NVD ): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-11833 ( SUSE ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-11833 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-11833 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2019-11884 ( SUSE ): 4.0 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVE-2019-11884 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2019-11884 ( NVD ): 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2019-12382 ( SUSE ): 2.5 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVE-2019-12382 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 CVE-2019-5489 ( SUSE ): 5.6 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2019-5489 ( NVD ): 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:	Magnum Orchestration 7 SUSE Enterprise Storage 4 SUSE Linux Enterprise High Availability Extension 12 SP2 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 Point of Service Image Server 12 12-SP2 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 SUSE Linux Enterprise Server 12 SP2 LTSS 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 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 SUSE OpenStack Cloud 7

An update that solves 12 vulnerabilities and has eight security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP2 kernel version 4.4.121 was updated to receive various security and bugfixes.

The following security bugs were fixed:

• 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.

• CVE-2019-11479: It was possible to send a crafted sequence of SACKs which would fragment the RACK send map. A remote attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. This would have resulted in excess resource consumption due to low mss values.

• 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. (bnc#1136424)

• CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There is an unchecked kstrdup of fwstr, which may have allowed an attacker to cause a denial of service (NULL pointer dereference and system crash). (bnc#1136586)

• CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may have been possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bnc#1120843)

• CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might have allowed local users to obtain sensitive information by reading uninitialized data in the filesystem. (bnc#1135281)

• CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343. (bnc#1135603)

• CVE-2019-11190: The Linux kernel allowed local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check had a race condition when reading /proc/pid/stat. (bnc#1131543)

• CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel There was a race condition leading to a use-after-free, related to net namespace cleanup. (bnc#1134537)

• CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not have ended with a '\0' character. (bnc#1134848)

• CVE-2018-17972: An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel It did not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents. (bnc#1110785)

The following non-security bugs were fixed:

• cifs: keep FileInfo handle live during oplock break (bsc#1106284, bsc#1131565).
• ftrace/x86_64: Emulate call function while updating in breakpoint handler (bsc#1099658).
• kabi: drop LINUX_MIB_TCPWQUEUETOOBIG snmp counter (bsc#1137586).
• kabi: move sysctl_tcp_min_snd_mss to preserve struct net layout (bsc#1137586).
• mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies() (bsc#1136935).
• tcp: add tcp_min_snd_mss sysctl (bsc#1137586).
• tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (bsc#1137586).
• tcp: limit payload size of sacked skbs (bsc#1137586).
• tcp: tcp_fragment() should apply sane memory limits (bsc#1137586).
• x86_64: Add gap to int3 to allow for call emulation (bsc#1099658).
• x86_64: Allow breakpoints to emulate call instructions (bsc#1099658).
• xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent (bnc#1134596).
• xen-swiotlb: use actually allocated size on check physical continuous (bnc#1134596).

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:

• SUSE OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2019-1534=1
• Magnum Orchestration 7
  zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2019-1534=1
• SUSE Linux Enterprise High Availability Extension 12 SP2
  zypper in -t patch SUSE-SLE-HA-12-SP2-2019-1534=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-HA-12-SP2-2019-1534=1 SUSE-SLE-SAP-12-SP2-2019-1534=1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2019-1534=1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2019-1534=1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-ESPOS-2019-1534=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-1534=1
• SUSE Enterprise Storage 4
  zypper in -t patch SUSE-Storage-4-2019-1534=1

Package List:

• SUSE OpenStack Cloud 7 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE OpenStack Cloud 7 (x86_64)
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE OpenStack Cloud 7 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• Magnum Orchestration 7 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• Magnum Orchestration 7 (x86_64)
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-debugsource-4.4.121-92.114.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (ppc64le s390x x86_64)
  • cluster-network-kmp-default-debuginfo-4.4.121-92.114.1
  • dlm-kmp-default-4.4.121-92.114.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • gfs2-kmp-default-4.4.121-92.114.1
  • ocfs2-kmp-default-4.4.121-92.114.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.114.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.114.1
  • dlm-kmp-default-debuginfo-4.4.121-92.114.1
  • cluster-network-kmp-default-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • cluster-md-kmp-default-4.4.121-92.114.1
  • cluster-md-kmp-default-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (nosrc)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (ppc64le x86_64)
  • cluster-network-kmp-default-debuginfo-4.4.121-92.114.1
  • dlm-kmp-default-4.4.121-92.114.1
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • gfs2-kmp-default-4.4.121-92.114.1
  • ocfs2-kmp-default-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.114.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.114.1
  • dlm-kmp-default-debuginfo-4.4.121-92.114.1
  • cluster-network-kmp-default-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • cluster-md-kmp-default-4.4.121-92.114.1
  • cluster-md-kmp-default-debuginfo-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (nosrc ppc64le x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (x86_64)
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (nosrc ppc64le s390x x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le s390x x86_64)
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le x86_64)
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (s390x)
  • kernel-default-man-4.4.121-92.114.1
• SUSE Enterprise Storage 4 (nosrc x86_64)
  • kernel-default-4.4.121-92.114.1
• SUSE Enterprise Storage 4 (x86_64)
  • kgraft-patch-4_4_121-92_114-default-1-3.5.1
  • kernel-default-debugsource-4.4.121-92.114.1
  • kernel-default-base-4.4.121-92.114.1
  • kernel-default-debuginfo-4.4.121-92.114.1
  • kernel-default-devel-4.4.121-92.114.1
  • kernel-syms-4.4.121-92.114.1
  • kernel-default-base-debuginfo-4.4.121-92.114.1
• SUSE Enterprise Storage 4 (noarch)
  • kernel-source-4.4.121-92.114.1
  • kernel-devel-4.4.121-92.114.1
  • kernel-macros-4.4.121-92.114.1

References:

• https://www.suse.com/security/cve/CVE-2018-17972.html
• https://www.suse.com/security/cve/CVE-2018-7191.html
• https://www.suse.com/security/cve/CVE-2019-11190.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-2019-11479.html
• https://www.suse.com/security/cve/CVE-2019-11815.html
• https://www.suse.com/security/cve/CVE-2019-11833.html
• https://www.suse.com/security/cve/CVE-2019-11884.html
• https://www.suse.com/security/cve/CVE-2019-12382.html
• https://www.suse.com/security/cve/CVE-2019-3846.html
• https://www.suse.com/security/cve/CVE-2019-5489.html
• https://bugzilla.suse.com/show_bug.cgi?id=1099658
• https://bugzilla.suse.com/show_bug.cgi?id=1106284
• https://bugzilla.suse.com/show_bug.cgi?id=1110785
• https://bugzilla.suse.com/show_bug.cgi?id=1113769
• https://bugzilla.suse.com/show_bug.cgi?id=1120843
• https://bugzilla.suse.com/show_bug.cgi?id=1120885
• https://bugzilla.suse.com/show_bug.cgi?id=1131543
• https://bugzilla.suse.com/show_bug.cgi?id=1131565
• https://bugzilla.suse.com/show_bug.cgi?id=1132374
• https://bugzilla.suse.com/show_bug.cgi?id=1132472
• https://bugzilla.suse.com/show_bug.cgi?id=1134537
• https://bugzilla.suse.com/show_bug.cgi?id=1134596
• https://bugzilla.suse.com/show_bug.cgi?id=1134848
• https://bugzilla.suse.com/show_bug.cgi?id=1135281
• https://bugzilla.suse.com/show_bug.cgi?id=1135603
• https://bugzilla.suse.com/show_bug.cgi?id=1136424
• https://bugzilla.suse.com/show_bug.cgi?id=1136446
• https://bugzilla.suse.com/show_bug.cgi?id=1136586
• https://bugzilla.suse.com/show_bug.cgi?id=1136935
• https://bugzilla.suse.com/show_bug.cgi?id=1137586