SUSE-SU-2021:0835-1: important: Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP2)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 39 for SLE 12 SP2)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:0835-1
Rating:             important
References:         #1165631 #1176931 #1177513 #1178684 #1179616 
                    
Cross-References:   CVE-2020-0429 CVE-2020-1749 CVE-2020-25645
                    CVE-2020-27786 CVE-2020-28374
CVSS scores:
                    CVE-2020-0429 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-1749 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-25645 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-25645 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
                    CVE-2020-27786 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-27786 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-28374 (NVD) : 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
                    CVE-2020-28374 (SUSE): 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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 4.4.121-92_149 fixes several issues.

   The following security issues were fixed:

   - CVE-2020-27786: Fixed a potential user after free which could have led
     to memory corruption or privilege escalation (bsc#1179616).
   - CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI
     target code which could have been used by remote attackers to read or
     write files via directory traversal in an XCOPY request (bsc#1178684).
   - CVE-2020-25645: Fixed an issue where the traffic between two Geneve
     endpoints may have been unencrypted when IPsec was configured to encrypt
     traffic for the specific UDP port used by the GENEVE tunnel allowing
     anyone between the two endpoints to read the traffic unencrypted
     (bsc#1177513).
   - CVE-2020-0429: Fixed a potential memory corruption due to a use after
     free which could have led local escalation of privilege with System
     execution privileges needed (bsc#1176931).
   - CVE-2020-1749: Fixed an issue in some networking protocols in IPsec,
     such as VXLAN and GENEVE tunnels over IPv6 where the kernel was not
     correctly routing tunneled data over the encrypted link rather sending
     the data unencrypted (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:

   - SUSE Linux Enterprise Server for SAP 12-SP3:

      zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-828=1

   - SUSE Linux Enterprise Server for SAP 12-SP2:

      zypper in -t patch SUSE-SLE-SAP-12-SP2-2021-835=1

   - SUSE Linux Enterprise Server 12-SP3-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-828=1

   - SUSE Linux Enterprise Server 12-SP2-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2021-835=1



Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):

      kgraft-patch-4_4_180-94_138-default-2-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-2-2.2

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

      kgraft-patch-4_4_121-92_149-default-2-2.2

   - SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):

      kgraft-patch-4_4_180-94_138-default-2-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-2-2.2

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

      kgraft-patch-4_4_121-92_149-default-2-2.2


References:

   https://www.suse.com/security/cve/CVE-2020-0429.html
   https://www.suse.com/security/cve/CVE-2020-1749.html
   https://www.suse.com/security/cve/CVE-2020-25645.html
   https://www.suse.com/security/cve/CVE-2020-27786.html
   https://www.suse.com/security/cve/CVE-2020-28374.html
   https://bugzilla.suse.com/1165631
   https://bugzilla.suse.com/1176931
   https://bugzilla.suse.com/1177513
   https://bugzilla.suse.com/1178684
   https://bugzilla.suse.com/1179616