ESB-2019.0121 - [SUSE] VNC: Multiple vulnerabilities 2019-01-14

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

                               ESB-2019.0121
          SUSE Security Update: Security update for LibVNCServer
                              14 January 2019

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

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

Product:           VNC
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-2018-20022 CVE-2018-20021
                   CVE-2018-20020 CVE-2018-20019 CVE-2018-15127
                   CVE-2018-15126 CVE-2018-6307 

Reference:         ESB-2019.0114
                   ESB-2019.0009

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2019/suse-su-201913927-1/

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   SUSE Security Update: Security update for LibVNCServer
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:13927-1
Rating:             important
References:         #1120114 #1120115 #1120116 #1120117 #1120118 
                    #1120120 #1120121 #1120122 
Cross-References:   CVE-2018-15126 CVE-2018-15127 CVE-2018-20019
                    CVE-2018-20020 CVE-2018-20021 CVE-2018-20022
                    CVE-2018-20024 CVE-2018-6307
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 8 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-2018-20022: 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 Software Development Kit 11-SP4:

      zypper in -t patch sdksp4-LibVNCServer-13927=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-LibVNCServer-13927=1

   - SUSE Linux Enterprise Server 11-SP3-LTSS:

      zypper in -t patch slessp3-LibVNCServer-13927=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-LibVNCServer-13927=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-LibVNCServer-13927=1

   - SUSE Linux Enterprise Debuginfo 11-SP3:

      zypper in -t patch dbgsp3-LibVNCServer-13927=1



Package List:

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

      LibVNCServer-devel-0.9.1-160.6.1

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

      LibVNCServer-0.9.1-160.6.1

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

      LibVNCServer-0.9.1-160.6.1

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

      LibVNCServer-0.9.1-160.6.1

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

      LibVNCServer-debuginfo-0.9.1-160.6.1
      LibVNCServer-debugsource-0.9.1-160.6.1

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

      LibVNCServer-debuginfo-0.9.1-160.6.1
      LibVNCServer-debugsource-0.9.1-160.6.1


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-2018-20024.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/1120120
   https://bugzilla.suse.com/1120121
   https://bugzilla.suse.com/1120122

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