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

Announcement ID:    openSUSE-SU-2017:1885-1
Rating:             important
References:         #1025084 #1035283 
Cross-References:   CVE-2017-10971 CVE-2017-10972
Affected Products:
                    openSUSE Leap 42.2
______________________________________________________________________________

   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.
   - Improve retrieval of entropy for generating random authentication
     cookies (boo#1025084)


Patch Instructions:

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

   - openSUSE Leap 42.2:

      zypper in -t patch openSUSE-2017-825=1

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


Package List:

   - openSUSE Leap 42.2 (i586 x86_64):

      xorg-x11-server-7.6_1.18.3-12.20.1
      xorg-x11-server-debuginfo-7.6_1.18.3-12.20.1
      xorg-x11-server-debugsource-7.6_1.18.3-12.20.1
      xorg-x11-server-extra-7.6_1.18.3-12.20.1
      xorg-x11-server-extra-debuginfo-7.6_1.18.3-12.20.1
      xorg-x11-server-sdk-7.6_1.18.3-12.20.1
      xorg-x11-server-source-7.6_1.18.3-12.20.1


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/1025084
   https://bugzilla.suse.com/1035283