SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2415-1
Rating:             important
References:         #1188062 #1188116 
Cross-References:   CVE-2021-22555 CVE-2021-33909
CVSS scores:
                    CVE-2021-22555 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-22555 (SUSE): 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-33909 (SUSE): 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Workstation Extension 15-SP3
                    SUSE Linux Enterprise Module for Live Patching 15-SP3
                    SUSE Linux Enterprise Module for Legacy Software 15-SP3
                    SUSE Linux Enterprise Module for Development Tools 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP3
                    SUSE Linux Enterprise High Availability 15-SP3
______________________________________________________________________________

   An update that fixes two vulnerabilities is now available.

Description:


   The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various
   security and bugfixes.

   Security issues fixed:

   - CVE-2021-22555: A heap out-of-bounds write was discovered in
     net/netfilter/x_tables.c (bnc#1188116).
   - CVE-2021-33909: Extremely large seq buffer allocations in seq_file could
     lead to buffer underruns and code execution (bsc#1188062).

   The following non-security bugs were fixed:

   - usb: dwc3: Fix debugfs creation flow (git-fixes).


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 Linux Enterprise Workstation Extension 15-SP3:

      zypper in -t patch SUSE-SLE-Product-WE-15-SP3-2021-2415=1

   - SUSE Linux Enterprise Module for Live Patching 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-2415=1

   - SUSE Linux Enterprise Module for Legacy Software 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Legacy-15-SP3-2021-2415=1

   - SUSE Linux Enterprise Module for Development Tools 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP3-2021-2415=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2415=1

   - SUSE Linux Enterprise High Availability 15-SP3:

      zypper in -t patch SUSE-SLE-Product-HA-15-SP3-2021-2415=1



Package List:

   - SUSE Linux Enterprise Workstation Extension 15-SP3 (x86_64):

      kernel-default-debuginfo-5.3.18-59.16.1
      kernel-default-debugsource-5.3.18-59.16.1
      kernel-default-extra-5.3.18-59.16.1
      kernel-default-extra-debuginfo-5.3.18-59.16.1
      kernel-preempt-debuginfo-5.3.18-59.16.1
      kernel-preempt-debugsource-5.3.18-59.16.1
      kernel-preempt-extra-5.3.18-59.16.1
      kernel-preempt-extra-debuginfo-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x
 x86_64):

      kernel-default-debuginfo-5.3.18-59.16.1
      kernel-default-debugsource-5.3.18-59.16.1
      kernel-default-livepatch-5.3.18-59.16.1
      kernel-default-livepatch-devel-5.3.18-59.16.1
      kernel-livepatch-5_3_18-59_16-default-1-7.3.1

   - SUSE Linux Enterprise Module for Legacy Software 15-SP3 (aarch64 ppc64le
 s390x x86_64):

      kernel-default-debuginfo-5.3.18-59.16.1
      kernel-default-debugsource-5.3.18-59.16.1
      reiserfs-kmp-default-5.3.18-59.16.1
      reiserfs-kmp-default-debuginfo-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Development Tools 15-SP3 (aarch64 ppc64le
 s390x x86_64):

      kernel-obs-build-5.3.18-59.16.1
      kernel-obs-build-debugsource-5.3.18-59.16.1
      kernel-syms-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Development Tools 15-SP3 (aarch64
 x86_64):

      kernel-preempt-debuginfo-5.3.18-59.16.1
      kernel-preempt-debugsource-5.3.18-59.16.1
      kernel-preempt-devel-5.3.18-59.16.1
      kernel-preempt-devel-debuginfo-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Development Tools 15-SP3 (noarch):

      kernel-docs-5.3.18-59.16.1
      kernel-source-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x
 x86_64):

      kernel-default-5.3.18-59.16.1
      kernel-default-base-5.3.18-59.16.1.18.8.1
      kernel-default-debuginfo-5.3.18-59.16.1
      kernel-default-debugsource-5.3.18-59.16.1
      kernel-default-devel-5.3.18-59.16.1
      kernel-default-devel-debuginfo-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 x86_64):

      kernel-preempt-5.3.18-59.16.1
      kernel-preempt-debuginfo-5.3.18-59.16.1
      kernel-preempt-debugsource-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64):

      kernel-64kb-5.3.18-59.16.1
      kernel-64kb-debuginfo-5.3.18-59.16.1
      kernel-64kb-debugsource-5.3.18-59.16.1
      kernel-64kb-devel-5.3.18-59.16.1
      kernel-64kb-devel-debuginfo-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (noarch):

      kernel-devel-5.3.18-59.16.1
      kernel-macros-5.3.18-59.16.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (s390x):

      kernel-zfcpdump-5.3.18-59.16.1
      kernel-zfcpdump-debuginfo-5.3.18-59.16.1
      kernel-zfcpdump-debugsource-5.3.18-59.16.1

   - SUSE Linux Enterprise High Availability 15-SP3 (aarch64 ppc64le s390x
 x86_64):

      cluster-md-kmp-default-5.3.18-59.16.1
      cluster-md-kmp-default-debuginfo-5.3.18-59.16.1
      dlm-kmp-default-5.3.18-59.16.1
      dlm-kmp-default-debuginfo-5.3.18-59.16.1
      gfs2-kmp-default-5.3.18-59.16.1
      gfs2-kmp-default-debuginfo-5.3.18-59.16.1
      kernel-default-debuginfo-5.3.18-59.16.1
      kernel-default-debugsource-5.3.18-59.16.1
      ocfs2-kmp-default-5.3.18-59.16.1
      ocfs2-kmp-default-debuginfo-5.3.18-59.16.1


References:

   https://www.suse.com/security/cve/CVE-2021-22555.html
   https://www.suse.com/security/cve/CVE-2021-33909.html
   https://bugzilla.suse.com/1188062
   https://bugzilla.suse.com/1188116