SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2020:14442-1
Rating:             important
References:         #1159912 #1159913 #1162002 #1171218 #1171219 
                    #1171220 #1172775 #1172999 #1173265 #1174462 
                    #1174543 
Cross-References:   CVE-2019-5108 CVE-2020-0305 CVE-2020-10732
                    CVE-2020-10769 CVE-2020-10773 CVE-2020-12652
                    CVE-2020-12656 CVE-2020-13974 CVE-2020-14416
                   
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4-LTSS
                    SUSE Linux Enterprise Server 11-EXTRA
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 9 vulnerabilities and has two fixes
   is now available.

Description:

   The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
   security and bugfixes.


   The following security bugs were fixed:

   - CVE-2020-10773: Fixed a memory leak on s390/s390x, in the
     cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
   - CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the
     slip and slcan line discipline could lead to a use-after-free. This
     affects drivers/net/slip/slip.c and drivers/net/can/slcan.c
     (bnc#1162002).
   - CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c,
     if k_ascii is called several times in a row (bnc#1172775).
   - CVE-2020-10732: A flaw was found in the implementation of Userspace core
     dumps. This flaw allowed an attacker with a local account to crash a
     trivial program and exfiltrate private kernel data (bnc#1171220).
   - CVE-2020-12656: Fixed a memory leak in gss_mech_free in the
     rpcsec_gss_krb5 implementation, caused by a lack of certain
     domain_release calls (bnc#1171219).
   - CVE-2020-0305: Fixed a possible use-after-free due to a race condition
     incdev_get of char_dev.c. This could lead to local escalation of
     privilege. User interaction is not needed for exploitation (bnc#1174462).
   - CVE-2020-10769: A buffer over-read flaw was found in
     crypto_authenc_extractkeys in crypto/authenc.c in the IPsec
     Cryptographic algorithm's module, authenc. This flaw allowed a local
     attacker with user privileges to cause a denial of service (bnc#1173265).
   - CVE-2020-12652: The __mptctl_ioctl function in
     drivers/message/fusion/mptctl.c allowed local users to hold an incorrect
     lock during the ioctl operation and trigger a race condition, i.e., a
     "double fetch" vulnerability (bnc#1171218).
   - CVE-2019-5108: Fixed a denial-of-service vulnerability in the wifi
     stack. An attacker could exploit this vulnerability by triggering AP to
     send IAPP location updates for stations before the required
     authentication process has completed (bnc#1159912).

   The following non-security bugs were fixed:

   - Fix gcc-discovered error in zeroing a struct (bnc#680814)


Special Instructions and Notes:

   Please reboot the system after installing this update.

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 11-SP4-LTSS:

      zypper in -t patch slessp4-kernel-source-14442=1

   - SUSE Linux Enterprise Server 11-EXTRA:

      zypper in -t patch slexsp3-kernel-source-14442=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-source-14442=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      kernel-default-3.0.101-108.117.1
      kernel-default-base-3.0.101-108.117.1
      kernel-default-devel-3.0.101-108.117.1
      kernel-source-3.0.101-108.117.1
      kernel-syms-3.0.101-108.117.1
      kernel-trace-3.0.101-108.117.1
      kernel-trace-base-3.0.101-108.117.1
      kernel-trace-devel-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):

      kernel-ec2-3.0.101-108.117.1
      kernel-ec2-base-3.0.101-108.117.1
      kernel-ec2-devel-3.0.101-108.117.1
      kernel-xen-3.0.101-108.117.1
      kernel-xen-base-3.0.101-108.117.1
      kernel-xen-devel-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (s390x):

      kernel-default-man-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (ppc64):

      kernel-bigmem-3.0.101-108.117.1
      kernel-bigmem-base-3.0.101-108.117.1
      kernel-bigmem-devel-3.0.101-108.117.1
      kernel-ppc64-3.0.101-108.117.1
      kernel-ppc64-base-3.0.101-108.117.1
      kernel-ppc64-devel-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):

      kernel-pae-3.0.101-108.117.1
      kernel-pae-base-3.0.101-108.117.1
      kernel-pae-devel-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):

      kernel-default-extra-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):

      kernel-xen-extra-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-EXTRA (x86_64):

      kernel-trace-extra-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-EXTRA (ppc64):

      kernel-ppc64-extra-3.0.101-108.117.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586):

      kernel-pae-extra-3.0.101-108.117.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      kernel-default-debuginfo-3.0.101-108.117.1
      kernel-default-debugsource-3.0.101-108.117.1
      kernel-trace-debuginfo-3.0.101-108.117.1
      kernel-trace-debugsource-3.0.101-108.117.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 s390x x86_64):

      kernel-default-devel-debuginfo-3.0.101-108.117.1
      kernel-trace-devel-debuginfo-3.0.101-108.117.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      kernel-ec2-debuginfo-3.0.101-108.117.1
      kernel-ec2-debugsource-3.0.101-108.117.1
      kernel-xen-debuginfo-3.0.101-108.117.1
      kernel-xen-debugsource-3.0.101-108.117.1
      kernel-xen-devel-debuginfo-3.0.101-108.117.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (ppc64):

      kernel-bigmem-debuginfo-3.0.101-108.117.1
      kernel-bigmem-debugsource-3.0.101-108.117.1
      kernel-ppc64-debuginfo-3.0.101-108.117.1
      kernel-ppc64-debugsource-3.0.101-108.117.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586):

      kernel-pae-debuginfo-3.0.101-108.117.1
      kernel-pae-debugsource-3.0.101-108.117.1
      kernel-pae-devel-debuginfo-3.0.101-108.117.1


References:

   https://www.suse.com/security/cve/CVE-2019-5108.html
   https://www.suse.com/security/cve/CVE-2020-0305.html
   https://www.suse.com/security/cve/CVE-2020-10732.html
   https://www.suse.com/security/cve/CVE-2020-10769.html
   https://www.suse.com/security/cve/CVE-2020-10773.html
   https://www.suse.com/security/cve/CVE-2020-12652.html
   https://www.suse.com/security/cve/CVE-2020-12656.html
   https://www.suse.com/security/cve/CVE-2020-13974.html
   https://www.suse.com/security/cve/CVE-2020-14416.html
   https://bugzilla.suse.com/1159912
   https://bugzilla.suse.com/1159913
   https://bugzilla.suse.com/1162002
   https://bugzilla.suse.com/1171218
   https://bugzilla.suse.com/1171219
   https://bugzilla.suse.com/1171220
   https://bugzilla.suse.com/1172775
   https://bugzilla.suse.com/1172999
   https://bugzilla.suse.com/1173265
   https://bugzilla.suse.com/1174462
   https://bugzilla.suse.com/1174543

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