SUSE Security Update: Security update for the Linux Kernel (Live Patch 6 for
 SLE 15 SP2)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:0362-1
Rating:             important
References:         #1179664 #1179779 #1179877 #1180008 #1180032 
                    #1180562 
Cross-References:   CVE-2020-0466 CVE-2020-29368 CVE-2020-29373
                    CVE-2020-29569 CVE-2020-29660 CVE-2020-29661
                    CVE-2020-36158
CVSS scores:
                    CVE-2020-0466 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-0466 (SUSE): 8.4
 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29368 (NVD) : 7
 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29368 (SUSE): 7
 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29373 (SUSE): 7.7
 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
                    CVE-2020-29569 (NVD) : 8.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2020-29569 (SUSE): 8.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2020-29660 (NVD) : 4.4
 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-29660 (SUSE): 7.4
 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29661 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29661 (SUSE): 7.4
 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-36158 (NVD) : 6.7
 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-36158 (SUSE): 8.8
 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

   An update that fixes 7 vulnerabilities is now available.

Description:

   This update for the Linux Kernel 5.3.18-24_34 fixes several issues.

   The following security issues were fixed:

   - CVE-2020-29373: Fixed an issue where kernel unsafely handles the root
     directory during path lookups, and thus a process inside a mount
     namespace can escape to unintended filesystem locations (bsc#1179779).
   - CVE-2020-36158: Fixed a potential remote code execution in the Marvell
     mwifiex driver (bsc#1180562).
   - CVE-2020-0466: Fixed a use-after-free due to a logic error in
     do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180032.
   - CVE-2020-29569: Fixed a use after free due to a logic error
     (bsc#1180008).
   - CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that
     may have allowed a read-after-free attack against TIOCGSID (bsc#1179877).
   - CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed
     a use-after-free attack against TIOCSPGRP (bsc#1179877).
   - CVE-2020-29368: Fixed an issue in copy-on-write implementation which
     could grant unintended write access because of a race condition in a THP
     mapcount check (bsc#1179664).


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-SP2-2021-360=1
 SUSE-SLE-Module-Live-Patching-15-SP2-2021-361=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-362=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-363=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-364=1



Package List:

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

      kernel-livepatch-5_3_18-24_24-default-5-2.1
      kernel-livepatch-5_3_18-24_24-default-debuginfo-5-2.1
      kernel-livepatch-5_3_18-24_29-default-3-2.1
      kernel-livepatch-5_3_18-24_29-default-debuginfo-3-2.1
      kernel-livepatch-5_3_18-24_34-default-3-2.1
      kernel-livepatch-5_3_18-24_34-default-debuginfo-3-2.1
      kernel-livepatch-5_3_18-24_37-default-3-2.1
      kernel-livepatch-5_3_18-24_37-default-debuginfo-3-2.1
      kernel-livepatch-5_3_18-24_43-default-2-2.1
      kernel-livepatch-5_3_18-24_43-default-debuginfo-2-2.1
      kernel-livepatch-SLE15-SP2_Update_4-debugsource-5-2.1
      kernel-livepatch-SLE15-SP2_Update_5-debugsource-3-2.1
      kernel-livepatch-SLE15-SP2_Update_6-debugsource-3-2.1
      kernel-livepatch-SLE15-SP2_Update_7-debugsource-3-2.1
      kernel-livepatch-SLE15-SP2_Update_8-debugsource-2-2.1


References:

   https://www.suse.com/security/cve/CVE-2020-0466.html
   https://www.suse.com/security/cve/CVE-2020-29368.html
   https://www.suse.com/security/cve/CVE-2020-29373.html
   https://www.suse.com/security/cve/CVE-2020-29569.html
   https://www.suse.com/security/cve/CVE-2020-29660.html
   https://www.suse.com/security/cve/CVE-2020-29661.html
   https://www.suse.com/security/cve/CVE-2020-36158.html
   https://bugzilla.suse.com/1179664
   https://bugzilla.suse.com/1179779
   https://bugzilla.suse.com/1179877
   https://bugzilla.suse.com/1180008
   https://bugzilla.suse.com/1180032
   https://bugzilla.suse.com/1180562