SUSE Security Update: Security update for the Linux Kernel (Live Patch 23
 for SLE 15 SP1)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1395-1
Rating:             important
References:         #1182294 #1183658 #1184171 
Cross-References:   CVE-2021-28660 CVE-2021-28688 CVE-2021-3444
                   
CVSS scores:
                    CVE-2021-28660 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28660 (SUSE): 8
 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
                    CVE-2021-28688 (NVD) : 6.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
                    CVE-2021-3444 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-3444 (SUSE): 7
 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Module for Live Patching 15-SP1
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-197_86 fixes several issues.

   The following security issues were fixed:

   - CVE-2021-3444: Fixed an issue with the bpf verifier which did not
     properly handle mod32 destination register truncation when the source
     register was known to be 0 leading to out of bounds read  (bsc#1184171).
   - CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan
     (bsc#1183658).
   - CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc##1182294,
     bsc#1183646).


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-SP2-2021-1395=1

   - SUSE Linux Enterprise Module for Live Patching 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-1385=1



Package List:

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

      kernel-livepatch-5_3_18-24_52-default-3-2.2
      kernel-livepatch-5_3_18-24_52-default-debuginfo-3-2.2
      kernel-livepatch-SLE15-SP2_Update_11-debugsource-3-2.2

   - SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):

      kernel-livepatch-4_12_14-197_86-default-3-2.2


References:

   https://www.suse.com/security/cve/CVE-2021-28660.html
   https://www.suse.com/security/cve/CVE-2021-28688.html
   https://www.suse.com/security/cve/CVE-2021-3444.html
   https://bugzilla.suse.com/1182294
   https://bugzilla.suse.com/1183658
   https://bugzilla.suse.com/1184171