SUSE Security Update: Security update for the Linux Kernel (Live Patch 17
 for SLE 12 SP5)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2067-1
Rating:             important
References:         #1185847 #1185899 #1186061 #1186285 
Cross-References:   CVE-2021-23134 CVE-2021-32399 CVE-2021-33034
                   
CVSS scores:
                    CVE-2021-23134 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-23134 (SUSE): 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-32399 (NVD) : 7
 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-32399 (SUSE): 7.4
 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33034 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33034 (SUSE): 7.7
 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Live Patching 12-SP5
______________________________________________________________________________

   An update that solves three vulnerabilities and has one
   errata is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_66 fixes several issues.

   The following issues were fixed:

   - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This
     could lead to writing an arbitrary values (bsc#1186111).
   - CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed
     local attackers to elevate their privileges (bnc#1186060).
   - CVE-2021-32399: Fixed a race condition when removing the HCI controller
     (bnc#1184611).
   - Fixed a data loss/data corruption that occurs if there is a write error
     on an md/raid array (bsc#1185680).


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 Linux Enterprise Module for Live Patching 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-2028=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-2067=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x
 x86_64):

      kernel-livepatch-5_3_18-24_61-default-2-2.1
      kernel-livepatch-5_3_18-24_61-default-debuginfo-2-2.1
      kernel-livepatch-SLE15-SP2_Update_12-debugsource-2-2.1

   - SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-122_66-default-3-2.1


References:

   https://www.suse.com/security/cve/CVE-2021-23134.html
   https://www.suse.com/security/cve/CVE-2021-32399.html
   https://www.suse.com/security/cve/CVE-2021-33034.html
   https://bugzilla.suse.com/1185847
   https://bugzilla.suse.com/1185899
   https://bugzilla.suse.com/1186061
   https://bugzilla.suse.com/1186285