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:

   - 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-2020-11668: 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).
   - 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:

   - SUSE Linux Enterprise Server for SAP 12-SP3:

      zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-3219=1

   - SUSE Linux Enterprise Server for SAP 12-SP2:

      zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-3226=1

   - SUSE Linux Enterprise Server 12-SP3-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-3219=1

   - SUSE Linux Enterprise Server 12-SP2-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-3226=1



Package List:

   - 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

   - SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):

      kgraft-patch-4_4_121-92_141-default-2-2.1

   - 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

   - SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le x86_64):

      kgraft-patch-4_4_121-92_141-default-2-2.1


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