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

                               ESB-2020.3937
            Security update for the Linux Kernel (Live Patches)
                              9 November 2020

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

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

Product:           linux kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Root Compromise          -- Existing Account      
                   Denial of Service        -- Existing Account      
                   Access Confidential Data -- Remote/Unauthenticated
                   Reduced Security         -- Existing Account      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-25212 CVE-2020-24394 CVE-2020-14386
                   CVE-2020-14381 CVE-2020-11668 CVE-2020-1749
                   CVE-2020-0431 CVE-2020-0429 

Reference:         ESB-2020.3907
                   ESB-2020.3888
                   ESB-2020.3775
                   ESB-2020.3682
                   ESB-2020.3669

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2020/suse-su-20203225-1
   https://www.suse.com/support/update/announcement/2020/suse-su-20203219-1
   https://www.suse.com/support/update/announcement/2020/suse-su-20203204-1
   https://www.suse.com/support/update/announcement/2020/suse-su-20203210-1
   https://www.suse.com/support/update/announcement/2020/suse-su-20203222-1

Comment: This bulletin contains five (5) SUSE security advisories.

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

SUSE Security Update: Security update for the Linux Kernel (Live Patch 29 for
SLE 12 SP3)

______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3225-1
Rating:            important
References:        #1176012 #1176072 #1176382 #1176896 #1176931
Cross-References:  CVE-2020-0429 CVE-2020-0431 CVE-2020-14381 CVE-2020-14386
                   CVE-2020-25212
Affected Products:
                   SUSE Linux Enterprise Server for SAP 12-SP3
                   SUSE Linux Enterprise Server for SAP 12-SP2
                   SUSE Linux Enterprise Server 12-SP3-LTSS
                   SUSE Linux Enterprise Server 12-SP2-LTSS
______________________________________________________________________________

An update that fixes 5 vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.180-94_107 fixes several issues.
The following security issues were fixed:

  o CVE-2020-0429: In l2tp_session_delete and related functions of l2tp_core.c,
    there is possible memory corruption due to a use after free. This could
    lead to local escalation of privilege with system execution privileges
    needed. User interaction is not needed for exploitation. (bsc#1176724)
  o CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait
    operation, which could have lead to memory corruption and possibly
    privilege escalation (bsc#1176011).
  o CVE-2020-0431: In kbd_keycode of keyboard.c, there is a possible out of
    bounds write due to a missing bounds check. This could lead to local
    escalation of privilege with no additional execution privileges needed.
    User interaction is not needed for exploitation. (bsc#1176722)
  o CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by
    local attackers to corrupt memory or possibly have unspecified other impact
    because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c
    (bsc#1176381).
  o CVE-2020-14386: Fixed a memory corruption which could have lead to an
    attacker gaining root privileges from unprivileged processes. The highest
    threat from this vulnerability is to data confidentiality and integrity
    (bsc#1176069).

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 for SAP 12-SP3:
    zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-3202=1
    SUSE-SLE-SAP-12-SP3-2020-3209=1 SUSE-SLE-SAP-12-SP3-2020-3218=1
    SUSE-SLE-SAP-12-SP3-2020-3220=1 SUSE-SLE-SAP-12-SP3-2020-3221=1
    SUSE-SLE-SAP-12-SP3-2020-3225=1
  o SUSE Linux Enterprise Server for SAP 12-SP2:
    zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-3227=1
    SUSE-SLE-SAP-12-SP2-2020-3228=1 SUSE-SLE-SAP-12-SP2-2020-3229=1
    SUSE-SLE-SAP-12-SP2-2020-3233=1
  o SUSE Linux Enterprise Server 12-SP3-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-3202=1
    SUSE-SLE-SERVER-12-SP3-2020-3209=1 SUSE-SLE-SERVER-12-SP3-2020-3218=1
    SUSE-SLE-SERVER-12-SP3-2020-3220=1 SUSE-SLE-SERVER-12-SP3-2020-3221=1
    SUSE-SLE-SERVER-12-SP3-2020-3225=1
  o SUSE Linux Enterprise Server 12-SP2-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-3227=1
    SUSE-SLE-SERVER-12-SP2-2020-3228=1 SUSE-SLE-SERVER-12-SP2-2020-3229=1
    SUSE-SLE-SERVER-12-SP2-2020-3233=1

Package List:

  o SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
       kgraft-patch-4_4_180-94_107-default-8-2.2
       kgraft-patch-4_4_180-94_107-default-debuginfo-8-2.2
       kgraft-patch-4_4_180-94_113-default-7-2.2
       kgraft-patch-4_4_180-94_113-default-debuginfo-7-2.2
       kgraft-patch-4_4_180-94_116-default-4-2.2
       kgraft-patch-4_4_180-94_116-default-debuginfo-4-2.2
       kgraft-patch-4_4_180-94_121-default-3-2.2
       kgraft-patch-4_4_180-94_121-default-debuginfo-3-2.2
       kgraft-patch-4_4_180-94_124-default-3-2.2
       kgraft-patch-4_4_180-94_124-default-debuginfo-3-2.2
       kgraft-patch-4_4_180-94_127-default-3-2.1
       kgraft-patch-4_4_180-94_127-default-debuginfo-3-2.1
  o SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
       kgraft-patch-4_4_121-92_125-default-8-2.2
       kgraft-patch-4_4_121-92_129-default-5-2.2
       kgraft-patch-4_4_121-92_135-default-3-2.2
       kgraft-patch-4_4_121-92_138-default-3-2.1
  o SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):
       kgraft-patch-4_4_180-94_107-default-8-2.2
       kgraft-patch-4_4_180-94_107-default-debuginfo-8-2.2
       kgraft-patch-4_4_180-94_113-default-7-2.2
       kgraft-patch-4_4_180-94_113-default-debuginfo-7-2.2
       kgraft-patch-4_4_180-94_116-default-4-2.2
       kgraft-patch-4_4_180-94_116-default-debuginfo-4-2.2
       kgraft-patch-4_4_180-94_121-default-3-2.2
       kgraft-patch-4_4_180-94_121-default-debuginfo-3-2.2
       kgraft-patch-4_4_180-94_124-default-3-2.2
       kgraft-patch-4_4_180-94_124-default-debuginfo-3-2.2
       kgraft-patch-4_4_180-94_127-default-3-2.1
       kgraft-patch-4_4_180-94_127-default-debuginfo-3-2.1
  o SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):
       kgraft-patch-4_4_121-92_125-default-8-2.2
       kgraft-patch-4_4_121-92_129-default-5-2.2
       kgraft-patch-4_4_121-92_135-default-3-2.2
       kgraft-patch-4_4_121-92_138-default-3-2.1


References:

  o https://www.suse.com/security/cve/CVE-2020-0429.html
  o https://www.suse.com/security/cve/CVE-2020-0431.html
  o https://www.suse.com/security/cve/CVE-2020-14381.html
  o https://www.suse.com/security/cve/CVE-2020-14386.html
  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://bugzilla.suse.com/1176012
  o https://bugzilla.suse.com/1176072
  o https://bugzilla.suse.com/1176382
  o https://bugzilla.suse.com/1176896
  o https://bugzilla.suse.com/1176931



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


SUSE Security Update: Security update for the Linux Kernel (Live Patch 35 for
SLE 12 SP3)

______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3219-1
Rating:            important
References:        #1165631 #1173942 #1176012 #1176382 #1176896 #1176931
Cross-References:  CVE-2020-0429 CVE-2020-0431 CVE-2020-11668 CVE-2020-14381
                   CVE-2020-1749 CVE-2020-25212
Affected Products:
                   SUSE Linux Enterprise Server for SAP 12-SP3
                   SUSE Linux Enterprise Server for SAP 12-SP2
                   SUSE Linux Enterprise Server 12-SP3-LTSS
                   SUSE Linux Enterprise Server 12-SP2-LTSS
______________________________________________________________________________

An update that fixes 6 vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.4.180-94_130 fixes several issues.
The following security issues were fixed:

  o CVE-2020-0429: In l2tp_session_delete and related functions of l2tp_core.c,
    there is possible memory corruption due to a use after free. This could
    lead to local escalation of privilege with system execution privileges
    needed. User interaction is not needed for exploitation. (bsc#1176724)
  o CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait
    operation, which could have lead to memory corruption and possibly
    privilege escalation (bsc#1176011).
  o CVE-2020-0431: In kbd_keycode of keyboard.c, there is a possible out of
    bounds write due to a missing bounds check. This could lead to local
    escalation of privilege with no additional execution privileges needed.
    User interaction is not needed for exploitation. (bsc#1176722)
  o CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by
    local attackers to corrupt memory or possibly have unspecified other impact
    because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c
    (bsc#1176381).
  o CVE-2020-11668: Fixed an out of bounds write to the heap in drivers/media/
    usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) caused by
    mishandling invalid descriptors (bsc#1168952).
  o CVE-2020-1749: A flaw was found in the implementation of some networking
    protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an
    encrypted tunnel is created between two hosts, the kernel isn't correctly
    routing tunneled data over the encrypted link, rather sending the data
    unencrypted. This would have allowed anyone in between the two endpoints to
    read the traffic unencrypted. (bsc#1165629)

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 for SAP 12-SP3:
    zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-3219=1
  o SUSE Linux Enterprise Server for SAP 12-SP2:
    zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-3226=1
  o SUSE Linux Enterprise Server 12-SP3-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-3219=1
  o SUSE Linux Enterprise Server 12-SP2-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-3226=1

Package List:

  o SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
       kgraft-patch-4_4_180-94_130-default-2-2.1
       kgraft-patch-4_4_180-94_130-default-debuginfo-2-2.1
  o SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
       kgraft-patch-4_4_121-92_141-default-2-2.1
  o SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):
       kgraft-patch-4_4_180-94_130-default-2-2.1
       kgraft-patch-4_4_180-94_130-default-debuginfo-2-2.1
  o SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):
       kgraft-patch-4_4_121-92_141-default-2-2.1


References:

  o https://www.suse.com/security/cve/CVE-2020-0429.html
  o https://www.suse.com/security/cve/CVE-2020-0431.html
  o https://www.suse.com/security/cve/CVE-2020-11668.html
  o https://www.suse.com/security/cve/CVE-2020-14381.html
  o https://www.suse.com/security/cve/CVE-2020-1749.html
  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://bugzilla.suse.com/1165631
  o https://bugzilla.suse.com/1173942
  o https://bugzilla.suse.com/1176012
  o https://bugzilla.suse.com/1176382
  o https://bugzilla.suse.com/1176896
  o https://bugzilla.suse.com/1176931


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


SUSE Security Update: Security update for the Linux Kernel (Live 
Patch 4 for SLE 12 SP5)
______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3204-1
Rating:            important
References:        #1175992 #1176012 #1176072 #1176382 #1176896
Cross-References:  CVE-2020-0431 CVE-2020-14381 CVE-2020-14386 CVE-2020-24394
                   CVE-2020-25212
Affected Products:
                   SUSE Linux Enterprise Live Patching 12-SP5
                   SUSE Linux Enterprise Live Patching 12-SP4
______________________________________________________________________________

Patch 4 for
SLE 12 SP5)

An update that fixes 5 vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-122_20 fixes several issues.
The following security issues were fixed:

  o CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait
    operation, which could have lead to memory corruption and possibly
    privilege escalation (bsc#1176011).
  o CVE-2020-0431: In kbd_keycode of keyboard.c, there is a possible out of
    bounds write due to a missing bounds check. This could lead to local
    escalation of privilege with no additional execution privileges needed.
    User interaction is not needed for exploitation. (bsc#1176722)
  o CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by
    local attackers to corrupt memory or possibly have unspecified other impact
    because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c
    (bsc#1176381).
  o CVE-2020-14386: Fixed a memory corruption which could have lead to an
    attacker gaining root privileges from unprivileged processes. The highest
    threat from this vulnerability is to data confidentiality and integrity
    (bsc#1176069).
  o CVE-2020-24394: The NFS server code can set incorrect permissions on new
    filesystem objects when the filesystem lacks ACL support. This occurs
    because the current umask is not considered (bsc#1175518).

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 Live Patching 12-SP5:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2020-3204=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3205=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3206=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3208=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3211=1
  o SUSE Linux Enterprise Live Patching 12-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2020-3213=1
    SUSE-SLE-Live-Patching-12-SP4-2020-3214=1
    SUSE-SLE-Live-Patching-12-SP4-2020-3215=1
    SUSE-SLE-Live-Patching-12-SP4-2020-3216=1
    SUSE-SLE-Live-Patching-12-SP4-2020-3217=1

Package List:

  o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-122_17-default-6-2.2
       kgraft-patch-4_12_14-122_20-default-5-2.2
  o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le x86_64):
       kgraft-patch-4_12_14-120-default-7-18.2
       kgraft-patch-4_12_14-120-default-debuginfo-7-18.2
       kgraft-patch-4_12_14-122_12-default-7-2.2
       kgraft-patch-4_12_14-122_7-default-7-2.2
       kgraft-patch-SLE12-SP5_Update_0-debugsource-7-18.2
  o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-95_51-default-5-2.2
  o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le x86_64):
       kgraft-patch-4_12_14-95_37-default-8-2.2
       kgraft-patch-4_12_14-95_40-default-7-2.2
       kgraft-patch-4_12_14-95_45-default-7-2.2
       kgraft-patch-4_12_14-95_48-default-6-2.2


References:

  o https://www.suse.com/security/cve/CVE-2020-0431.html
  o https://www.suse.com/security/cve/CVE-2020-14381.html
  o https://www.suse.com/security/cve/CVE-2020-14386.html
  o https://www.suse.com/security/cve/CVE-2020-24394.html
  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://bugzilla.suse.com/1175992
  o https://bugzilla.suse.com/1176012
  o https://bugzilla.suse.com/1176072
  o https://bugzilla.suse.com/1176382
  o https://bugzilla.suse.com/1176896


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


SUSE Security Update: Security update for the Linux Kernel (Live 
Patch 6 for SLE 12 SP5
______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3210-1
Rating:            important
References:        #1175992 #1176012 #1176072 #1176382
Cross-References:  CVE-2020-14381 CVE-2020-14386 CVE-2020-24394 CVE-2020-25212
Affected Products:
                   SUSE Linux Enterprise Live Patching 12-SP5
                   SUSE Linux Enterprise Live Patching 12-SP4
______________________________________________________________________________

Patch 6 for
SLE 12 SP5)

An update that fixes four vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-122_26 fixes several issues.
The following security issues were fixed:

  o CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait
    operation, which could have lead to memory corruption and possibly
    privilege escalation (bsc#1176011).
  o CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by
    local attackers to corrupt memory or possibly have unspecified other impact
    because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c
    (bsc#1176381).
  o CVE-2020-14386: Fixed a memory corruption which could have lead to an
    attacker gaining root privileges from unprivileged processes. The highest
    threat from this vulnerability is to data confidentiality and integrity
    (bsc#1176069).
  o CVE-2020-24394: The NFS server code can set incorrect permissions on new
    filesystem objects when the filesystem lacks ACL support. This occurs
    because the current umask is not considered (bsc#1175518).

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 Live Patching 12-SP5:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2020-3203=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3223=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3224=1
    SUSE-SLE-Live-Patching-12-SP5-2020-3232=1
  o SUSE Linux Enterprise Live Patching 12-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2020-3210=1
    SUSE-SLE-Live-Patching-12-SP4-2020-3212=1

Package List:

  o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-122_23-default-3-2.2
       kgraft-patch-4_12_14-122_26-default-3-2.2
       kgraft-patch-4_12_14-122_29-default-3-2.1
       kgraft-patch-4_12_14-122_32-default-3-2.1
  o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-95_54-default-3-2.2
       kgraft-patch-4_12_14-95_57-default-3-2.1


References:

  o https://www.suse.com/security/cve/CVE-2020-14381.html
  o https://www.suse.com/security/cve/CVE-2020-14386.html
  o https://www.suse.com/security/cve/CVE-2020-24394.html
  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://bugzilla.suse.com/1175992
  o https://bugzilla.suse.com/1176012
  o https://bugzilla.suse.com/1176072
  o https://bugzilla.suse.com/1176382


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


SUSE Security Update: Security update for the Linux Kernel (Live 
Patch 9 for SLE 12 SP5)
______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:3222-1
Rating:            important
References:        #1176012 #1176382
Cross-References:  CVE-2020-14381 CVE-2020-25212
Affected Products:
                   SUSE Linux Enterprise Live Patching 12-SP5
                   SUSE Linux Enterprise Live Patching 12-SP4
______________________________________________________________________________

Patch 9 for
SLE 12 SP5)

An update that fixes two vulnerabilities is now available.

Description:

This update for the Linux Kernel 4.12.14-122_37 fixes several issues.
The following security issues were fixed:

  o CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait
    operation, which could have lead to memory corruption and possibly
    privilege escalation (bsc#1176011).
  o CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by
    local attackers to corrupt memory or possibly have unspecified other impact
    because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c
    (bsc#1176381).

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 Live Patching 12-SP5:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2020-3222=1
  o SUSE Linux Enterprise Live Patching 12-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2020-3207=1

Package List:

  o SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-122_37-default-2-2.1
  o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
       kgraft-patch-4_12_14-95_60-default-2-2.1


References:

  o https://www.suse.com/security/cve/CVE-2020-14381.html
  o https://www.suse.com/security/cve/CVE-2020-25212.html
  o https://bugzilla.suse.com/1176012
  o https://bugzilla.suse.com/1176382

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

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Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
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