ESB-2018.2533 - [SUSE] gdm: Execute arbitrary code/commands - Existing account 2018-08-28

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

                               ESB-2018.2533
                          Security update for gdm
                              28 August 2018

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

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

Product:           gdm
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-14424  

Reference:         ESB-2018.2320

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20182527-1/

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   SUSE Security Update: Security update for gdm
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2527-1
Rating:             moderate
References:         #1103737
Cross-References:   CVE-2018-14424
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 12-SP3
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

Description:

   This update for gdm fixes the following security issue:

   - CVE-2018-14424: The daemon in GDM did not properly unexport display
     objects from its D-Bus interface when they are destroyed, which allowed
     a local attacker to trigger a use-after-free via a specially crafted
     sequence of D-Bus method calls, resulting in a denial of service or
     potential code execution (bsc#1103737).


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 Software Development Kit 12-SP3:

      zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-1765=1

   - SUSE Linux Enterprise Server 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-1765=1

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-1765=1


Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP3
     (aarch64 ppc64le s390x x86_64):

      gdm-debuginfo-3.10.0.1-54.6.3
      gdm-debugsource-3.10.0.1-54.6.3
      gdm-devel-3.10.0.1-54.6.3

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

      gdm-3.10.0.1-54.6.3
      gdm-debuginfo-3.10.0.1-54.6.3
      gdm-debugsource-3.10.0.1-54.6.3
      libgdm1-3.10.0.1-54.6.3
      libgdm1-debuginfo-3.10.0.1-54.6.3
      typelib-1_0-Gdm-1_0-3.10.0.1-54.6.3

   - SUSE Linux Enterprise Server 12-SP3 (noarch):

      gdm-lang-3.10.0.1-54.6.3
      gdmflexiserver-3.10.0.1-54.6.3

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      gdm-3.10.0.1-54.6.3
      gdm-debuginfo-3.10.0.1-54.6.3
      gdm-debugsource-3.10.0.1-54.6.3
      libgdm1-3.10.0.1-54.6.3
      libgdm1-debuginfo-3.10.0.1-54.6.3
      typelib-1_0-Gdm-1_0-3.10.0.1-54.6.3

   - SUSE Linux Enterprise Desktop 12-SP3 (noarch):

      gdm-lang-3.10.0.1-54.6.3
      gdmflexiserver-3.10.0.1-54.6.3


References:

   https://www.suse.com/security/cve/CVE-2018-14424.html
   https://bugzilla.suse.com/1103737

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