ESB-2018.3932 - [SUSE] ovmf: Increased privileges - Existing account 2018-12-20

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

                               ESB-2018.3932
                         Security update for ovmf
                             20 December 2018

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

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

Product:           ovmf
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-3613 CVE-2017-5735 CVE-2017-5734
                   CVE-2017-5733 CVE-2017-5732 CVE-2017-5731

Reference:         ESB-2018.3911

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20184194-1/

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   SUSE Security Update: Security update for ovmf
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:4194-1
Rating:             moderate
References:         #1115916 #1115917 #1117998
Cross-References:   CVE-2017-5731 CVE-2017-5732 CVE-2017-5733
                    CVE-2017-5734 CVE-2017-5735 CVE-2018-3613

Affected Products:
                    SUSE Linux Enterprise Server 12-SP4
                    SUSE Linux Enterprise Desktop 12-SP4
______________________________________________________________________________

   An update that fixes 6 vulnerabilities is now available.

Description:

   This update for ovmf fixes the following issues:

   Security issues fixed:

   - CVE-2018-3613: Fixed AuthVariable Timestamp zeroing issue on
     APPEND_WRITE (bsc#1115916).
   - CVE-2017-5731: Fixed privilege escalation via processing of malformed
     files in TianoCompress.c (bsc#1115917).
   - CVE-2017-5732: Fixed privilege escalation via processing of malformed
     files in BaseUefiDecompressLib.c (bsc#1115917).
   - CVE-2017-5733: Fixed privilege escalation via heap-based buffer overflow
     in MakeTable() function (bsc#1115917).
   - CVE-2017-5734: Fixed privilege escalation via stack-based buffer
     overflow in MakeTable() function (bsc#1115917).
   - CVE-2017-5735: Fixed privilege escalation via heap-based buffer overflow
     in Decode() function (bsc#1115917).


   Non security issues fixed:

   - Fixed an issue with the default owner of PK/KEK/db/dbx and make the
     auto-enrollment only happen at the very first time. (bsc#1117998)


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 12-SP4:

      zypper in -t patch SUSE-SLE-SERVER-12-SP4-2018-2989=1

   - SUSE Linux Enterprise Desktop 12-SP4:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2018-2989=1



Package List:

   - SUSE Linux Enterprise Server 12-SP4 (aarch64 x86_64):

      ovmf-2017+git1510945757.b2662641d5-3.5.1
      ovmf-tools-2017+git1510945757.b2662641d5-3.5.1

   - SUSE Linux Enterprise Server 12-SP4 (noarch):

      qemu-ovmf-x86_64-2017+git1510945757.b2662641d5-3.5.1
      qemu-uefi-aarch64-2017+git1510945757.b2662641d5-3.5.1

   - SUSE Linux Enterprise Desktop 12-SP4 (noarch):

      qemu-ovmf-x86_64-2017+git1510945757.b2662641d5-3.5.1


References:

   https://www.suse.com/security/cve/CVE-2017-5731.html
   https://www.suse.com/security/cve/CVE-2017-5732.html
   https://www.suse.com/security/cve/CVE-2017-5733.html
   https://www.suse.com/security/cve/CVE-2017-5734.html
   https://www.suse.com/security/cve/CVE-2017-5735.html
   https://www.suse.com/security/cve/CVE-2018-3613.html
   https://bugzilla.suse.com/1115916
   https://bugzilla.suse.com/1115917
   https://bugzilla.suse.com/1117998

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