SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:2393-1
Rating:             important
References:         #1158266 #1162338 #1162369 #1173871 #1177282 
                    #1194013 #1196901 #1198577 #1199426 #1199487 
                    #1199507 #1199657 #1200059 #1200143 #1200144 
                    #1200249 #1200571 #1200599 #1200604 #1200605 
                    #1200608 #1200619 #1200692 #1200762 #1201050 
                    #1201080 #1201251 
Cross-References:   CVE-2019-19377 CVE-2020-26541 CVE-2021-26341
                    CVE-2021-4157 CVE-2022-1184 CVE-2022-1679
                    CVE-2022-1729 CVE-2022-1974 CVE-2022-1975
                    CVE-2022-20132 CVE-2022-20141 CVE-2022-20154
                    CVE-2022-21499 CVE-2022-2318 CVE-2022-26365
                    CVE-2022-29900 CVE-2022-29901 CVE-2022-33740
                    CVE-2022-33741 CVE-2022-33742 CVE-2022-33981
                   
CVSS scores:
                    CVE-2019-19377 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
                    CVE-2019-19377 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
                    CVE-2020-26541 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
                    CVE-2020-26541 (SUSE): 6 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
                    CVE-2021-26341 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-26341 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-4157 (NVD) : 8 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-4157 (SUSE): 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
                    CVE-2022-1184 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-1679 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-1679 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-1729 (SUSE): 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
                    CVE-2022-1974 (SUSE): 6.8 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-1975 (SUSE): 4.5 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-20132 (NVD) : 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2022-20132 (SUSE): 4.9 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
                    CVE-2022-20141 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-20141 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-20154 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-20154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-21499 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-21499 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-2318 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-26365 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
                    CVE-2022-29900 (SUSE): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2022-29901 (SUSE): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
                    CVE-2022-33740 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
                    CVE-2022-33741 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
                    CVE-2022-33742 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
                    CVE-2022-33981 (NVD) : 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
                    CVE-2022-33981 (SUSE): 5.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise High Availability 12-SP4
                    SUSE Linux Enterprise High Performance Computing 12-SP4
                    SUSE Linux Enterprise Live Patching 12-SP4
                    SUSE Linux Enterprise Server 12-SP4
                    SUSE Linux Enterprise Server 12-SP4-LTSS
                    SUSE Linux Enterprise Server for SAP 12-SP4
                    SUSE OpenStack Cloud 9
                    SUSE OpenStack Cloud Crowbar 9
______________________________________________________________________________

   An update that solves 21 vulnerabilities and has 6 fixes is
   now available.

Description:

   The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various
   security and bugfixes.


   The following security bugs were fixed:

   - CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre
     like Branch Target Buffer attack, that can leak arbitrary kernel
     information (bsc#1199657).
   - CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in
     the way a user forces the ath9k_htc_wait_for_target function to fail
     with some input messages (bsc#1199487).
   - CVE-2022-20132: Fixed out of bounds read due to improper input
     validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
   - CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
   - CVE-2022-20141: Fixed a possible use after free due to improper locking
     in ip_check_mc_rcu() (bsc#1200604).
   - CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS
     subsystem, related to the replication of files with NFS. A user could
     potentially crash the system or escalate privileges on the system
     (bsc#1194013).
   - CVE-2022-20154: Fixed a use after free due to a race condition in
     lock_sock_nested of sock.c. This could lead to local escalation of
     privilege with System execution privileges needed (bsc#1200599).
   - CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer
     handler in net/rose/rose_timer.c that allow attackers to crash the
     system without any privileges (bsc#1201251).
   - CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed
     multiple potential data leaks with Block and Network devices when using
     untrusted backends (bsc#1200762).
   - CVE-2021-26341: Some AMD CPUs may transiently execute beyond
     unconditional direct branches, which may potentially result in data
     leakage (bsc#1201050).
   - CVE-2020-26541: Enforce the secure boot forbidden signature database
     (aka dbx) protection mechanism. (bsc#1177282)
   - CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by
     simulating an nfc device from user-space (bsc#1200144).
   - CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux
     kernel by simulating nfc device from user-space (bsc#1200143).
   - CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self
     (bsc#1199507).
   - CVE-2022-1184: Fixed a use-after-free and memory errors in ext4 when
     mounting and operating on a corrupted image (bsc#1198577).
   - CVE-2022-21499: Lock down kgdb to prohibit secure-boot bypass
     (bsc#1199426).
   - CVE-2019-19377: Fixed a user-after-free that could be triggered when an
     attacker mounts a crafted btrfs filesystem image (bsc#1158266).

   The following non-security bugs were fixed:

   - btrfs: tree-checker: fix incorrect printk format (bsc#1200249).
   - exec: Force single empty string when argv is empty (bsc#1200571).


Special Instructions and Notes:

   Please reboot the system after installing this update.

Patch Instructions:

   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 Crowbar 9:

      zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-2393=1

   - SUSE OpenStack Cloud 9:

      zypper in -t patch SUSE-OpenStack-Cloud-9-2022-2393=1

   - SUSE Linux Enterprise Server for SAP 12-SP4:

      zypper in -t patch SUSE-SLE-SAP-12-SP4-2022-2393=1

   - SUSE Linux Enterprise Server 12-SP4-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2022-2393=1

   - SUSE Linux Enterprise Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-2393=1

   - SUSE Linux Enterprise High Availability 12-SP4:

      zypper in -t patch SUSE-SLE-HA-12-SP4-2022-2393=1



Package List:

   - SUSE OpenStack Cloud Crowbar 9 (x86_64):

      kernel-default-4.12.14-95.102.1
      kernel-default-base-4.12.14-95.102.1
      kernel-default-base-debuginfo-4.12.14-95.102.1
      kernel-default-debuginfo-4.12.14-95.102.1
      kernel-default-debugsource-4.12.14-95.102.1
      kernel-default-devel-4.12.14-95.102.1
      kernel-default-devel-debuginfo-4.12.14-95.102.1
      kernel-syms-4.12.14-95.102.1

   - SUSE OpenStack Cloud Crowbar 9 (noarch):

      kernel-devel-4.12.14-95.102.1
      kernel-macros-4.12.14-95.102.1
      kernel-source-4.12.14-95.102.1

   - SUSE OpenStack Cloud 9 (noarch):

      kernel-devel-4.12.14-95.102.1
      kernel-macros-4.12.14-95.102.1
      kernel-source-4.12.14-95.102.1

   - SUSE OpenStack Cloud 9 (x86_64):

      kernel-default-4.12.14-95.102.1
      kernel-default-base-4.12.14-95.102.1
      kernel-default-base-debuginfo-4.12.14-95.102.1
      kernel-default-debuginfo-4.12.14-95.102.1
      kernel-default-debugsource-4.12.14-95.102.1
      kernel-default-devel-4.12.14-95.102.1
      kernel-default-devel-debuginfo-4.12.14-95.102.1
      kernel-syms-4.12.14-95.102.1

   - SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64):

      kernel-default-4.12.14-95.102.1
      kernel-default-base-4.12.14-95.102.1
      kernel-default-base-debuginfo-4.12.14-95.102.1
      kernel-default-debuginfo-4.12.14-95.102.1
      kernel-default-debugsource-4.12.14-95.102.1
      kernel-default-devel-4.12.14-95.102.1
      kernel-syms-4.12.14-95.102.1

   - SUSE Linux Enterprise Server for SAP 12-SP4 (x86_64):

      kernel-default-devel-debuginfo-4.12.14-95.102.1

   - SUSE Linux Enterprise Server for SAP 12-SP4 (noarch):

      kernel-devel-4.12.14-95.102.1
      kernel-macros-4.12.14-95.102.1
      kernel-source-4.12.14-95.102.1

   - SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 ppc64le s390x x86_64):

      kernel-default-4.12.14-95.102.1
      kernel-default-base-4.12.14-95.102.1
      kernel-default-base-debuginfo-4.12.14-95.102.1
      kernel-default-debuginfo-4.12.14-95.102.1
      kernel-default-debugsource-4.12.14-95.102.1
      kernel-default-devel-4.12.14-95.102.1
      kernel-syms-4.12.14-95.102.1

   - SUSE Linux Enterprise Server 12-SP4-LTSS (noarch):

      kernel-devel-4.12.14-95.102.1
      kernel-macros-4.12.14-95.102.1
      kernel-source-4.12.14-95.102.1

   - SUSE Linux Enterprise Server 12-SP4-LTSS (x86_64):

      kernel-default-devel-debuginfo-4.12.14-95.102.1

   - SUSE Linux Enterprise Server 12-SP4-LTSS (s390x):

      kernel-default-man-4.12.14-95.102.1

   - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

      kernel-default-kgraft-4.12.14-95.102.1
      kernel-default-kgraft-devel-4.12.14-95.102.1
      kgraft-patch-4_12_14-95_102-default-1-6.3.1

   - SUSE Linux Enterprise High Availability 12-SP4 (ppc64le s390x x86_64):

      cluster-md-kmp-default-4.12.14-95.102.1
      cluster-md-kmp-default-debuginfo-4.12.14-95.102.1
      dlm-kmp-default-4.12.14-95.102.1
      dlm-kmp-default-debuginfo-4.12.14-95.102.1
      gfs2-kmp-default-4.12.14-95.102.1
      gfs2-kmp-default-debuginfo-4.12.14-95.102.1
      kernel-default-debuginfo-4.12.14-95.102.1
      kernel-default-debugsource-4.12.14-95.102.1
      ocfs2-kmp-default-4.12.14-95.102.1
      ocfs2-kmp-default-debuginfo-4.12.14-95.102.1


References:

   https://www.suse.com/security/cve/CVE-2019-19377.html
   https://www.suse.com/security/cve/CVE-2020-26541.html
   https://www.suse.com/security/cve/CVE-2021-26341.html
   https://www.suse.com/security/cve/CVE-2021-4157.html
   https://www.suse.com/security/cve/CVE-2022-1184.html
   https://www.suse.com/security/cve/CVE-2022-1679.html
   https://www.suse.com/security/cve/CVE-2022-1729.html
   https://www.suse.com/security/cve/CVE-2022-1974.html
   https://www.suse.com/security/cve/CVE-2022-1975.html
   https://www.suse.com/security/cve/CVE-2022-20132.html
   https://www.suse.com/security/cve/CVE-2022-20141.html
   https://www.suse.com/security/cve/CVE-2022-20154.html
   https://www.suse.com/security/cve/CVE-2022-21499.html
   https://www.suse.com/security/cve/CVE-2022-2318.html
   https://www.suse.com/security/cve/CVE-2022-26365.html
   https://www.suse.com/security/cve/CVE-2022-29900.html
   https://www.suse.com/security/cve/CVE-2022-29901.html
   https://www.suse.com/security/cve/CVE-2022-33740.html
   https://www.suse.com/security/cve/CVE-2022-33741.html
   https://www.suse.com/security/cve/CVE-2022-33742.html
   https://www.suse.com/security/cve/CVE-2022-33981.html
   https://bugzilla.suse.com/1158266
   https://bugzilla.suse.com/1162338
   https://bugzilla.suse.com/1162369
   https://bugzilla.suse.com/1173871
   https://bugzilla.suse.com/1177282
   https://bugzilla.suse.com/1194013
   https://bugzilla.suse.com/1196901
   https://bugzilla.suse.com/1198577
   https://bugzilla.suse.com/1199426
   https://bugzilla.suse.com/1199487
   https://bugzilla.suse.com/1199507
   https://bugzilla.suse.com/1199657
   https://bugzilla.suse.com/1200059
   https://bugzilla.suse.com/1200143
   https://bugzilla.suse.com/1200144
   https://bugzilla.suse.com/1200249
   https://bugzilla.suse.com/1200571
   https://bugzilla.suse.com/1200599
   https://bugzilla.suse.com/1200604
   https://bugzilla.suse.com/1200605
   https://bugzilla.suse.com/1200608
   https://bugzilla.suse.com/1200619
   https://bugzilla.suse.com/1200692
   https://bugzilla.suse.com/1200762
   https://bugzilla.suse.com/1201050
   https://bugzilla.suse.com/1201080
   https://bugzilla.suse.com/1201251