SUSE-SU-2021:3735-1: important: Security update for the Linux Kernel (Live Patch 15 for SLE 12 SP5)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 15 for SLE 12 SP5)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:3735-1
Rating:             important
References:         #1190432 #1191318 #1192042 
Cross-References:   CVE-2021-0935 CVE-2021-3752 CVE-2021-41864
                   
CVSS scores:
                    CVE-2021-0935 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3752 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-41864 (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 Module for Live Patching 15
                    SUSE Linux Enterprise Live Patching 12-SP5
                    SUSE Linux Enterprise Live Patching 12-SP4
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_60 fixes several issues.

   The following security issues were fixed:

   - CVE-2021-0935: Fixed use after free that could lead to local escalation
     of privilege in ip6_xmit of ip6_output.c (bsc#1192042).
   - CVE-2021-3752: Fixed vulnerability in the linux kernel Bluetooth uaf
     module (bsc#1190432).
   - CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds
     write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c
     (bsc#1191318).


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:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-3736=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-3735=1

   - SUSE Linux Enterprise Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-3734=1



Package List:

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

      kernel-livepatch-4_12_14-150_66-default-12-2.2
      kernel-livepatch-4_12_14-150_66-default-debuginfo-12-2.2

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

      kgraft-patch-4_12_14-122_60-default-12-2.2

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

      kgraft-patch-4_12_14-95_74-default-8-2.2


References:

   https://www.suse.com/security/cve/CVE-2021-0935.html
   https://www.suse.com/security/cve/CVE-2021-3752.html
   https://www.suse.com/security/cve/CVE-2021-41864.html
   https://bugzilla.suse.com/1190432
   https://bugzilla.suse.com/1191318
   https://bugzilla.suse.com/1192042