Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2020:2134-1
Rating:	important
References:	bsc#1162002 bsc#1170383 bsc#1171189 bsc#1171191 bsc#1171220 bsc#1171732 bsc#1171988 bsc#1172049 bsc#1172453 bsc#1172458 bsc#1172775 bsc#1172781 bsc#1172782 bsc#1172783 bsc#1172999 bsc#1174115 bsc#1174462 bsc#1174543
Cross-References:	CVE-2019-20810 CVE-2019-20812 CVE-2020-0305 CVE-2020-10135 CVE-2020-10711 CVE-2020-10732 CVE-2020-10751 CVE-2020-10766 CVE-2020-10767 CVE-2020-10768 CVE-2020-10773 CVE-2020-12771 CVE-2020-13974 CVE-2020-14416
CVSS scores:	CVE-2019-20810 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVE-2019-20810 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2019-20812 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2019-20812 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-0305 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-0305 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-10135 ( SUSE ): 5.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2020-10135 ( NVD ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVE-2020-10711 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-10711 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-10732 ( SUSE ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2020-10732 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2020-10751 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVE-2020-10751 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVE-2020-10766 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2020-10766 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2020-10767 ( SUSE ): 5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N CVE-2020-10767 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2020-10768 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2020-10768 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2020-10773 ( SUSE ): 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N CVE-2020-10773 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N CVE-2020-12771 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-12771 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-13974 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-13974 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-14416 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-14416 ( NVD ): 4.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
Affected Products:	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 14 vulnerabilities and has four security fixes can now be installed.

Description:

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

The following security bugs were fixed:

• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).
• CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).
• CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067 (bnc#1172453).
• CVE-2020-10732: A flaw was found in the implementation of userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Indirect branch speculation could have been enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).
• CVE-2020-10766: Fixed Rogue cross-process SSBD shutdown, where a Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (bnc#1172781).
• CVE-2020-10767: Indirect Branch Prediction Barrier was force-disabled when STIBP is unavailable or enhanced IBRS is available. (bnc#1172782).
• CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. (bnc#1172775).
• CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).

The following non-security bugs were fixed:

• intel_idle: Graceful probe failure when MWAIT is disabled (bsc#1174115).
• x86/dumpstack/64: Handle faults when printing the "Stack: " part of an OOPS (bsc#1170383).
• xfs: Fix tail rounding in xfs_alloc_file_space() (bsc#1172049).

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 Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-HA-12-SP2-2020-2134=1 SUSE-SLE-SAP-12-SP2-2020-2134=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-2134=1
• SUSE OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2020-2134=1
• SUSE Linux Enterprise High Availability Extension 12 SP2
  zypper in -t patch SUSE-SLE-HA-12-SP2-2020-2134=1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2
  zypper in -t patch SUSE-SLE-POS-12-SP2-CLIENT-2020-2134=1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-2134=1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-ESPOS-2020-2134=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (ppc64le x86_64)
  • kernel-syms-4.4.121-92.138.1
  • cluster-md-kmp-default-4.4.121-92.138.1
  • kgraft-patch-4_4_121-92_138-default-1-3.3.1
  • gfs2-kmp-default-4.4.121-92.138.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • cluster-md-kmp-default-debuginfo-4.4.121-92.138.1
  • cluster-network-kmp-default-debuginfo-4.4.121-92.138.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.138.1
  • dlm-kmp-default-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • dlm-kmp-default-debuginfo-4.4.121-92.138.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.138.1
  • cluster-network-kmp-default-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • ocfs2-kmp-default-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (nosrc ppc64le x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le s390x x86_64)
  • kernel-syms-4.4.121-92.138.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (nosrc ppc64le s390x x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (s390x)
  • kernel-default-man-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le x86_64)
  • kgraft-patch-4_4_121-92_138-default-1-3.3.1
• SUSE OpenStack Cloud 7 (nosrc x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE OpenStack Cloud 7 (x86_64)
  • kernel-syms-4.4.121-92.138.1
  • kgraft-patch-4_4_121-92_138-default-1-3.3.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE OpenStack Cloud 7 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (ppc64le s390x x86_64)
  • cluster-md-kmp-default-4.4.121-92.138.1
  • gfs2-kmp-default-4.4.121-92.138.1
  • cluster-network-kmp-default-debuginfo-4.4.121-92.138.1
  • cluster-md-kmp-default-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • ocfs2-kmp-default-debuginfo-4.4.121-92.138.1
  • dlm-kmp-default-4.4.121-92.138.1
  • dlm-kmp-default-debuginfo-4.4.121-92.138.1
  • gfs2-kmp-default-debuginfo-4.4.121-92.138.1
  • ocfs2-kmp-default-4.4.121-92.138.1
  • cluster-network-kmp-default-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
• SUSE Linux Enterprise High Availability Extension 12 SP2 (nosrc)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (x86_64)
  • kernel-syms-4.4.121-92.138.1
  • kgraft-patch-4_4_121-92_138-default-1-3.3.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE Linux Enterprise Point of Service Image Server 12 12-SP2 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
  • kernel-syms-4.4.121-92.138.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (nosrc x86_64)
  • kernel-default-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (x86_64)
  • kernel-syms-4.4.121-92.138.1
  • kgraft-patch-4_4_121-92_138-default-1-3.3.1
  • kernel-default-base-debuginfo-4.4.121-92.138.1
  • kernel-default-debugsource-4.4.121-92.138.1
  • kernel-default-devel-4.4.121-92.138.1
  • kernel-default-debuginfo-4.4.121-92.138.1
  • kernel-default-base-4.4.121-92.138.1
• SUSE Linux Enterprise Server 12 SP2 ESPOS 12-SP2 (noarch)
  • kernel-source-4.4.121-92.138.1
  • kernel-macros-4.4.121-92.138.1
  • kernel-devel-4.4.121-92.138.1

References:

• https://www.suse.com/security/cve/CVE-2019-20810.html
• https://www.suse.com/security/cve/CVE-2019-20812.html
• https://www.suse.com/security/cve/CVE-2020-0305.html
• https://www.suse.com/security/cve/CVE-2020-10135.html
• https://www.suse.com/security/cve/CVE-2020-10711.html
• https://www.suse.com/security/cve/CVE-2020-10732.html
• https://www.suse.com/security/cve/CVE-2020-10751.html
• https://www.suse.com/security/cve/CVE-2020-10766.html
• https://www.suse.com/security/cve/CVE-2020-10767.html
• https://www.suse.com/security/cve/CVE-2020-10768.html
• https://www.suse.com/security/cve/CVE-2020-10773.html
• https://www.suse.com/security/cve/CVE-2020-12771.html
• https://www.suse.com/security/cve/CVE-2020-13974.html
• https://www.suse.com/security/cve/CVE-2020-14416.html
• https://bugzilla.suse.com/show_bug.cgi?id=1162002
• https://bugzilla.suse.com/show_bug.cgi?id=1170383
• https://bugzilla.suse.com/show_bug.cgi?id=1171189
• https://bugzilla.suse.com/show_bug.cgi?id=1171191
• https://bugzilla.suse.com/show_bug.cgi?id=1171220
• https://bugzilla.suse.com/show_bug.cgi?id=1171732
• https://bugzilla.suse.com/show_bug.cgi?id=1171988
• https://bugzilla.suse.com/show_bug.cgi?id=1172049
• https://bugzilla.suse.com/show_bug.cgi?id=1172453
• https://bugzilla.suse.com/show_bug.cgi?id=1172458
• https://bugzilla.suse.com/show_bug.cgi?id=1172775
• https://bugzilla.suse.com/show_bug.cgi?id=1172781
• https://bugzilla.suse.com/show_bug.cgi?id=1172782
• https://bugzilla.suse.com/show_bug.cgi?id=1172783
• https://bugzilla.suse.com/show_bug.cgi?id=1172999
• https://bugzilla.suse.com/show_bug.cgi?id=1174115
• https://bugzilla.suse.com/show_bug.cgi?id=1174462
• https://bugzilla.suse.com/show_bug.cgi?id=1174543