ESB-2017.1740 - [SUSE] xorg-x11-server: Multiple vulnerabilities 2017-07-13

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1740
         SUSE Security Update: Security update for xorg-x11-server
                               13 July 2017

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

Product:          xorg-x11-server
Publisher:        SUSE
Operating System: SUSE
Impact/Access:    Increased Privileges   -- Existing Account
                  Access Privileged Data -- Existing Account
                  Denial of Service      -- Existing Account
Resolution:       Patch/Upgrade
CVE Names:        CVE-2017-10972 CVE-2017-10971 

Reference:        ESB-2017.1715

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   SUSE Security Update: Security update for xorg-x11-server
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:1850-1
Rating:             important
References:         #1035283 
Cross-References:   CVE-2017-10971 CVE-2017-10972
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 11-SP4
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Server 11-SP3-LTSS
                    SUSE Linux Enterprise Point of Sale 11-SP3
                    SUSE Linux Enterprise Debuginfo 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________

   An update that fixes two vulnerabilities is now available.

Description:

   This update for xorg-x11-server fixes the following issues:

   - CVE-2017-10971: Fix endianess handling of GenericEvent to prevent a
     stack overflow by clients. (bnc#1035283)
   - Make sure the type of all events to be sent by ProcXSendExtensionEvent
     are in the allowed range.
   - CVE-2017-10972: Initialize the xEvent eventT with zeros to avoid
     information leakage.


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Software Development Kit 11-SP4:

      zypper in -t patch sdksp4-xorg-x11-server-13206=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-xorg-x11-server-13206=1

   - SUSE Linux Enterprise Server 11-SP3-LTSS:

      zypper in -t patch slessp3-xorg-x11-server-13206=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-xorg-x11-server-13206=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xorg-x11-server-13206=1

   - SUSE Linux Enterprise Debuginfo 11-SP3:

      zypper in -t patch dbgsp3-xorg-x11-server-13206=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      xorg-x11-server-sdk-7.4-27.121.2

   - SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      xorg-x11-Xvnc-7.4-27.121.2
      xorg-x11-server-7.4-27.121.2
      xorg-x11-server-extra-7.4-27.121.2

   - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 s390x x86_64):

      xorg-x11-Xvnc-7.4-27.121.2
      xorg-x11-server-7.4-27.121.2
      xorg-x11-server-extra-7.4-27.121.2

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      xorg-x11-Xvnc-7.4-27.121.2
      xorg-x11-server-7.4-27.121.2
      xorg-x11-server-extra-7.4-27.121.2

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      xorg-x11-server-debuginfo-7.4-27.121.2
      xorg-x11-server-debugsource-7.4-27.121.2

   - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):

      xorg-x11-server-debuginfo-7.4-27.121.2
      xorg-x11-server-debugsource-7.4-27.121.2


References:

   https://www.suse.com/security/cve/CVE-2017-10971.html
   https://www.suse.com/security/cve/CVE-2017-10972.html
   https://bugzilla.suse.com/1035283

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