ESB-2018.3911 - [Win][UNIX/Linux][SUSE] ovmf: Increased privileges - Existing account 2018-12-18

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

                               ESB-2018.3911
                         Security update for ovmf
                             18 December 2018

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

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

Product:           ovmf
Publisher:         SUSE
Operating System:  SUSE
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
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

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20184155-1/

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than SUSE. It is recommended that administrators 
         running ovmf check for an updated version of the software for their
         operating system.

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   SUSE Security Update: Security update for ovmf
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:4155-1
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 Module for Server Applications 15
______________________________________________________________________________

   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 Module for Server Applications 15:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2018-2960=1



Package List:

   - SUSE Linux Enterprise Module for Server Applications 15 (aarch64 x86_64):

      ovmf-2017+git1510945757.b2662641d5-5.11.1
      ovmf-tools-2017+git1510945757.b2662641d5-5.11.1

   - SUSE Linux Enterprise Module for Server Applications 15 (noarch):

      qemu-ovmf-x86_64-2017+git1510945757.b2662641d5-5.11.1
      qemu-uefi-aarch64-2017+git1510945757.b2662641d5-5.11.1


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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