SUSE-SU-2017:1093-1: moderate: Security update for tigervnc

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for tigervnc
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:1093-1
Rating:             moderate
References:         #1031875 #1031877 #1031879 #1031886 #1032880 
                    
Cross-References:   CVE-2017-7392 CVE-2017-7393 CVE-2017-7394
                    CVE-2017-7395 CVE-2017-7396
Affected Products:
                    SUSE Linux Enterprise Server 12-SP1
                    SUSE Linux Enterprise Desktop 12-SP1
______________________________________________________________________________

   An update that fixes 5 vulnerabilities is now available.

Description:


   This update for tigervnc provides the several fixes.

   These security issues were fixed:

   - CVE-2017-7392, CVE-2017-7396: Client can cause leak in VNC server
     (bsc#1031886)
   - CVE-2017-7395: Authenticated VNC client can crash VNC server
     (bsc#1031877)
   - CVE-2017-7394: Client can crash or block VNC server (bsc#1031879)
   - CVE-2017-7393: Authenticated client can cause double free in VNC server
     (bsc#1031875)
   - Prevent buffer overflow in VNC client, allowing for crashing the client
     (bnc#1032880)


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 Server 12-SP1:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-636=1

   - SUSE Linux Enterprise Desktop 12-SP1:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2017-636=1

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


Package List:

   - SUSE Linux Enterprise Server 12-SP1 (ppc64le s390x x86_64):

      tigervnc-1.4.3-24.1
      tigervnc-debuginfo-1.4.3-24.1
      tigervnc-debugsource-1.4.3-24.1
      xorg-x11-Xvnc-1.4.3-24.1
      xorg-x11-Xvnc-debuginfo-1.4.3-24.1

   - SUSE Linux Enterprise Desktop 12-SP1 (x86_64):

      tigervnc-1.4.3-24.1
      tigervnc-debuginfo-1.4.3-24.1
      tigervnc-debugsource-1.4.3-24.1
      xorg-x11-Xvnc-1.4.3-24.1
      xorg-x11-Xvnc-debuginfo-1.4.3-24.1


References:

   https://www.suse.com/security/cve/CVE-2017-7392.html
   https://www.suse.com/security/cve/CVE-2017-7393.html
   https://www.suse.com/security/cve/CVE-2017-7394.html
   https://www.suse.com/security/cve/CVE-2017-7395.html
   https://www.suse.com/security/cve/CVE-2017-7396.html
   https://bugzilla.suse.com/1031875
   https://bugzilla.suse.com/1031877
   https://bugzilla.suse.com/1031879
   https://bugzilla.suse.com/1031886
   https://bugzilla.suse.com/1032880