Operating System:

[SUSE]

Published:

13 April 2021

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1212
    Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP2)
                               13 April 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Linux Kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Increased Privileges            -- Existing Account      
                   Denial of Service               -- Existing Account      
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-27365 CVE-2021-27364 CVE-2021-27363
                   CVE-2020-25645 CVE-2020-1749 CVE-2020-0429

Reference:         ESB-2021.1159
                   ESB-2021.1152
                   ESB-2021.0955

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2021/suse-su-20211145-1
   https://www.suse.com/support/update/announcement/2021/suse-su-20211148-1

Comment: This bulletin contains two (2) SUSE security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

SUSE Security Update: Security update for the Linux Kernel (Live Patch 36 for
SLE 12 SP2)

______________________________________________________________________________

Announcement ID:   SUSE-SU-2021:1145-1
Rating:            important
References:        #1182717 #1183120 #1183491
Cross-References:  CVE-2021-27363 CVE-2021-27364 CVE-2021-27365
Affected Products:
                   SUSE Linux Enterprise Server 12-SP2-LTSS-SAP
                   SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.121-92_138 fixes several issues.
The following security issues were fixed:

  o CVE-2021-27365: Fixed an issue where data structures did not have
    appropriate length constraints or checks, and could exceed the PAGE_SIZE
    value (bsc#1183491).
  o CVE-2021-27363: Fixed a kernel pointer leak which could have been used to
    determine the address of the iscsi_transport structure (bsc#1183120).
  o CVE-2021-27364: Fixed an issue where an unprivileged user could craft
    Netlink messages (bsc#1182717).

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:

  o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1142=1
    SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1143=1
    SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1144=1
    SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1145=1
    SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1146=1
    SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1147=1
  o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1142=1
    SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1143=1
    SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1144=1
    SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1145=1
    SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1146=1
    SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1147=1

Package List:

  o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP (x86_64):
       kgraft-patch-4_4_121-92_129-default-10-2.2
       kgraft-patch-4_4_121-92_135-default-8-2.2
       kgraft-patch-4_4_121-92_138-default-8-2.2
       kgraft-patch-4_4_121-92_141-default-7-2.2
       kgraft-patch-4_4_121-92_146-default-5-2.2
       kgraft-patch-4_4_121-92_149-default-3-2.2
  o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON (x86_64):
       kgraft-patch-4_4_121-92_129-default-10-2.2
       kgraft-patch-4_4_121-92_135-default-8-2.2
       kgraft-patch-4_4_121-92_138-default-8-2.2
       kgraft-patch-4_4_121-92_141-default-7-2.2
       kgraft-patch-4_4_121-92_146-default-5-2.2
       kgraft-patch-4_4_121-92_149-default-3-2.2


References:

  o https://www.suse.com/security/cve/CVE-2021-27363.html
  o https://www.suse.com/security/cve/CVE-2021-27364.html
  o https://www.suse.com/security/cve/CVE-2021-27365.html
  o https://bugzilla.suse.com/1182717
  o https://bugzilla.suse.com/1183120
  o https://bugzilla.suse.com/1183491


- --------------------------------------------------------------------------------


SUSE Security Update: Security update for the Linux Kernel (Live Patch 40 for
SLE 12 SP2)

______________________________________________________________________________

Announcement ID:   SUSE-SU-2021:1148-1
Rating:            important
References:        #1165631 #1176931 #1177513 #1182717 #1183120 #1183491
Cross-References:  CVE-2020-0429 CVE-2020-1749 CVE-2020-25645 CVE-2021-27363
                   CVE-2021-27364 CVE-2021-27365
Affected Products:
                   SUSE Linux Enterprise Server 12-SP2-LTSS-SAP
                   SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON
______________________________________________________________________________

An update that fixes 6 vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.121-92_152 fixes several issues.
The following security issues were fixed:

  o CVE-2021-27365: Fixed an issue where data structures did not have
    appropriate length constraints or checks, and could exceed the PAGE_SIZE
    value (bsc#1183491).
  o CVE-2021-27363: Fixed a kernel pointer leak which could have been used to
    determine the address of the iscsi_transport structure (bsc#1183120).
  o CVE-2021-27364: Fixed an issue where an unprivileged user could craft
    Netlink messages (bsc#1182717).
  o CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two
    Geneve endpoints to be unencrypted (bsc#1177513).
  o CVE-2020-0429: Fixed a memory corruption due to a use after free which
    could have led to local escalation of privilege with System execution
    privileges needed (bsc#1176931).
  o CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup (bsc#
    1165631).

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:

  o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1148=1
  o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1148=1

Package List:

  o SUSE Linux Enterprise Server 12-SP2-LTSS-SAP (x86_64):
       kgraft-patch-4_4_121-92_152-default-2-2.2
  o SUSE Linux Enterprise Server 12-SP2-LTSS-ERICSSON (x86_64):
       kgraft-patch-4_4_121-92_152-default-2-2.2


References:

  o https://www.suse.com/security/cve/CVE-2020-0429.html
  o https://www.suse.com/security/cve/CVE-2020-1749.html
  o https://www.suse.com/security/cve/CVE-2020-25645.html
  o https://www.suse.com/security/cve/CVE-2021-27363.html
  o https://www.suse.com/security/cve/CVE-2021-27364.html
  o https://www.suse.com/security/cve/CVE-2021-27365.html
  o https://bugzilla.suse.com/1165631
  o https://bugzilla.suse.com/1176931
  o https://bugzilla.suse.com/1177513
  o https://bugzilla.suse.com/1182717
  o https://bugzilla.suse.com/1183120
  o https://bugzilla.suse.com/1183491

- --------------------------END INCLUDED TEXT--------------------

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