SUSE-SU-2021:1728-1: important: Security update for the Linux Kernel (Live Patch 22 for SLE 15)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 22 for SLE 15)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1728-1
Rating:             important
References:         #1178066 #1184710 #1184952 
Cross-References:   CVE-2020-0433 CVE-2020-36322 CVE-2021-29154
                   
CVSS scores:
                    CVE-2020-0433 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-0433 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-36322 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
                    CVE-2021-29154 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-29154 (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
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-150_66 fixes several issues.

   The following security issues were fixed:

   - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation
     where fuse_do_getattr() calls make_bad_inode() in inappropriate
     situations, could have caused a system crash. NOTE: the original fix for
     this vulnerability was incomplete, and its incompleteness is tracked as
     CVE-2021-28950 (bsc#1184952).
   - CVE-2020-0433: Fixed blk_mq_queue_tag_busy_iter of blk-mq-tag.c, where a
     possible use after free due to improper locking could have happened.
     This could have led to local escalation of privilege with no additional
     execution privileges needed. User interaction is not needed for
     exploitation (bnc#1178066).
   - CVE-2021-29154: Fixed BPF JIT compilers that allowed to execute
     arbitrary code within the kernel context (bsc#1184710)


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-15-2021-1727=1 SUSE-SLE-Module-Live-Patching-15-2021-1728=1 SUSE-SLE-Module-Live-Patching-15-2021-1729=1 SUSE-SLE-Module-Live-Patching-15-2021-1730=1 SUSE-SLE-Module-Live-Patching-15-2021-1731=1 SUSE-SLE-Module-Live-Patching-15-2021-1732=1



Package List:

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

      kernel-livepatch-4_12_14-150_52-default-10-2.2
      kernel-livepatch-4_12_14-150_52-default-debuginfo-10-2.2
      kernel-livepatch-4_12_14-150_55-default-10-2.2
      kernel-livepatch-4_12_14-150_55-default-debuginfo-10-2.2
      kernel-livepatch-4_12_14-150_58-default-9-2.2
      kernel-livepatch-4_12_14-150_58-default-debuginfo-9-2.2
      kernel-livepatch-4_12_14-150_63-default-7-2.2
      kernel-livepatch-4_12_14-150_63-default-debuginfo-7-2.2
      kernel-livepatch-4_12_14-150_66-default-5-2.2
      kernel-livepatch-4_12_14-150_66-default-debuginfo-5-2.2
      kernel-livepatch-4_12_14-150_69-default-4-2.2
      kernel-livepatch-4_12_14-150_69-default-debuginfo-4-2.2


References:

   https://www.suse.com/security/cve/CVE-2020-0433.html
   https://www.suse.com/security/cve/CVE-2020-36322.html
   https://www.suse.com/security/cve/CVE-2021-29154.html
   https://bugzilla.suse.com/1178066
   https://bugzilla.suse.com/1184710
   https://bugzilla.suse.com/1184952