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

   - 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)
   - 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).
   - 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)
   - 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).
   - 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:

   - 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

   - 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

   - 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

   - 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:

   - 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

   - 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

   - 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

   - 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:

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