SUSE-SU-2021:2042-1: important: Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2042-1
Rating:             important
References:         #1185899 #1186235 #1186285 
Cross-References:   CVE-2021-32399 CVE-2021-33034
CVSS scores:
                    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 Server for SAP 12-SP3
                    SUSE Linux Enterprise Server 12-SP3-LTSS
______________________________________________________________________________

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

Description:

   This update for the Linux Kernel 4.4.180-94_138 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-2021-32399: Fixed a race condition when removing the HCI controller
     (bnc#1184611).
   - Fixed a regression with the last livepatch which caused a kernel warning
     during sysfs read (bsc#1186235).


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 Server for SAP 12-SP3:

      zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-2035=1 SUSE-SLE-SAP-12-SP3-2021-2042=1

   - SUSE Linux Enterprise Server 12-SP3-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-2035=1 SUSE-SLE-SERVER-12-SP3-2021-2042=1



Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):

      kgraft-patch-4_4_180-94_138-default-6-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-6-2.2
      kgraft-patch-4_4_180-94_141-default-5-2.2
      kgraft-patch-4_4_180-94_141-default-debuginfo-5-2.2

   - SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):

      kgraft-patch-4_4_180-94_138-default-6-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-6-2.2
      kgraft-patch-4_4_180-94_141-default-5-2.2
      kgraft-patch-4_4_180-94_141-default-debuginfo-5-2.2


References:

   https://www.suse.com/security/cve/CVE-2021-32399.html
   https://www.suse.com/security/cve/CVE-2021-33034.html
   https://bugzilla.suse.com/1185899
   https://bugzilla.suse.com/1186235
   https://bugzilla.suse.com/1186285