ESB-2019.0123 - [SUSE] LibVNCServer: Multiple vulnerabilities 2019-01-14

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

                               ESB-2019.0123
          SUSE Security Update: Security update for LibVNCServer
                              14 January 2019

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

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

Product:           LibVNCServer
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-20024 CVE-2018-20023 CVE-2018-20022
                   CVE-2018-20021 CVE-2018-20020 CVE-2018-20019
                   CVE-2018-15127 CVE-2018-15126 CVE-2018-6307

Reference:         ESB-2019.0121
                   ESB-2019.0114
                   ESB-2019.0009

Original Bulletin: 
   https://www.suse.com/es-es/support/update/announcement/2019/suse-su-20190080-1/

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   SUSE Security Update: Security update for LibVNCServer
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:0080-1
Rating:             important
References:         #1120114 #1120115 #1120116 #1120117 #1120118 
                    #1120119 #1120120 #1120121 #1120122 
Cross-References:   CVE-2018-15126 CVE-2018-15127 CVE-2018-20019
                    CVE-2018-20020 CVE-2018-20021 CVE-2018-20022
                    CVE-2018-20023 CVE-2018-20024 CVE-2018-6307
                   
Affected Products:
                    SUSE Linux Enterprise Workstation Extension 15
                    SUSE Linux Enterprise Module for Packagehub Subpackages 15
                    SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
______________________________________________________________________________

   An update that fixes 9 vulnerabilities is now available.

Description:

   This update for LibVNCServer fixes the following issues:

   Security issues fixed:

   - CVE-2018-15126: Fixed use-after-free in file transfer extension
     (bsc#1120114)
   - CVE-2018-6307: Fixed use-after-free in file transfer extension server
     code (bsc#1120115)
   - CVE-2018-20020: Fixed heap out-of-bound write inside structure in VNC
     client code (bsc#1120116)
   - CVE-2018-15127: Fixed heap out-of-bounds write in rfbserver.c
     (bsc#1120117)
   - CVE-2018-20019: Fixed multiple heap out-of-bound writes in VNC client
     code (bsc#1120118)
   - CVE-2018-20023: Fixed information disclosure through improper
     initialization in VNC Repeater client code (bsc#1120119)
   - CVE-2018-20022: Fixed information disclosure through improper
     initialization in VNC client code (bsc#1120120)
   - CVE-2018-20024: Fixed NULL pointer dereference in VNC client code
     (bsc#1120121)
   - CVE-2018-20021: Fixed infinite loop in VNC client code (bsc#1120122)


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 Workstation Extension 15:

      zypper in -t patch SUSE-SLE-Product-WE-15-2019-80=1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15:

      zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-2019-80=1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-80=1



Package List:

   - SUSE Linux Enterprise Workstation Extension 15 (x86_64):

      LibVNCServer-debugsource-0.9.10-4.3.1
      libvncclient0-0.9.10-4.3.1
      libvncclient0-debuginfo-0.9.10-4.3.1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15 (aarch64 ppc64le s390x x86_64):

      LibVNCServer-debugsource-0.9.10-4.3.1
      libvncserver0-0.9.10-4.3.1
      libvncserver0-debuginfo-0.9.10-4.3.1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (aarch64 ppc64le s390x x86_64):

      LibVNCServer-debugsource-0.9.10-4.3.1
      LibVNCServer-devel-0.9.10-4.3.1
      libvncserver0-0.9.10-4.3.1
      libvncserver0-debuginfo-0.9.10-4.3.1


References:

   https://www.suse.com/security/cve/CVE-2018-15126.html
   https://www.suse.com/security/cve/CVE-2018-15127.html
   https://www.suse.com/security/cve/CVE-2018-20019.html
   https://www.suse.com/security/cve/CVE-2018-20020.html
   https://www.suse.com/security/cve/CVE-2018-20021.html
   https://www.suse.com/security/cve/CVE-2018-20022.html
   https://www.suse.com/security/cve/CVE-2018-20023.html
   https://www.suse.com/security/cve/CVE-2018-20024.html
   https://www.suse.com/security/cve/CVE-2018-6307.html
   https://bugzilla.suse.com/1120114
   https://bugzilla.suse.com/1120115
   https://bugzilla.suse.com/1120116
   https://bugzilla.suse.com/1120117
   https://bugzilla.suse.com/1120118
   https://bugzilla.suse.com/1120119
   https://bugzilla.suse.com/1120120
   https://bugzilla.suse.com/1120121
   https://bugzilla.suse.com/1120122

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