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

                               ESB-2020.0176
                    SUSE: Security update for tigervnc
                              17 January 2020

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

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

Product:           tigervnc
Publisher:         SUSE
Operating System:  SUSE
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Denial of Service               -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-15695 CVE-2019-15694 CVE-2019-15693
                   CVE-2019-15692 CVE-2019-15691 

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1.html
   https://www.suse.com/support/update/announcement/2020/suse-su-20200113-1.html

Comment: This bulletin contains two (2) SUSE security advisories.
         
         This advisory references vulnerabilities in products which run on 
         platforms other than SUSE. It is recommended that administrators 
         running tigervnc check for an updated version of the software for 
         their operating system.

- --------------------------BEGIN INCLUDED TEXT--------------------

SUSE Security Update: Security update for tigervnc

______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:0112-1
Rating:            important
References:        #1159856 #1159858 #1159860 #1160250 #1160251
Cross-References:  CVE-2019-15691 CVE-2019-15692 CVE-2019-15693 CVE-2019-15694
                   CVE-2019-15695
Affected Products:
                   SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
                   SUSE Linux Enterprise Module for Desktop Applications 15
                   SUSE Linux Enterprise Module for Basesystem 15
______________________________________________________________________________

An update that fixes 5 vulnerabilities is now available.

Description:

This update for tigervnc fixes the following issues:

  o CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack
    memory in ZRLEDecoder (bsc#1159856).
  o CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode (bsc#
    1160250).
  o CVE-2019-15693: Fixed a heap-based buffer overflow in
    TightDecoder::FilterGradient (bsc#1159858).
  o CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper
    error handling in processing MemOutStream (bsc#1160251).
  o CVE-2019-15695: Fixed a stack-based buffer overflow, which could be
    triggered from CMsgReader::readSetCursor (bsc#1159860).

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:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2020-112=1
  o SUSE Linux Enterprise Module for Desktop Applications 15:
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-2020-112=1
  o SUSE Linux Enterprise Module for Basesystem 15:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2020-112=1

Package List:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
    (noarch):
       tigervnc-x11vnc-1.8.0-13.11.1
       xorg-x11-Xvnc-java-1.8.0-13.11.1
  o SUSE Linux Enterprise Module for Desktop Applications 15 (aarch64 ppc64le
    s390x x86_64):
       libXvnc-devel-1.8.0-13.11.1
       tigervnc-debuginfo-1.8.0-13.11.1
       tigervnc-debugsource-1.8.0-13.11.1
  o SUSE Linux Enterprise Module for Basesystem 15 (aarch64 ppc64le s390x
    x86_64):
       libXvnc1-1.8.0-13.11.1
       libXvnc1-debuginfo-1.8.0-13.11.1
       tigervnc-1.8.0-13.11.1
       tigervnc-debuginfo-1.8.0-13.11.1
       tigervnc-debugsource-1.8.0-13.11.1
       xorg-x11-Xvnc-1.8.0-13.11.1
       xorg-x11-Xvnc-debuginfo-1.8.0-13.11.1
  o SUSE Linux Enterprise Module for Basesystem 15 (noarch):
       xorg-x11-Xvnc-novnc-1.8.0-13.11.1


References:

  o https://www.suse.com/security/cve/CVE-2019-15691.html
  o https://www.suse.com/security/cve/CVE-2019-15692.html
  o https://www.suse.com/security/cve/CVE-2019-15693.html
  o https://www.suse.com/security/cve/CVE-2019-15694.html
  o https://www.suse.com/security/cve/CVE-2019-15695.html
  o https://bugzilla.suse.com/1159856
  o https://bugzilla.suse.com/1159858
  o https://bugzilla.suse.com/1159860
  o https://bugzilla.suse.com/1160250
  o https://bugzilla.suse.com/1160251
______________________________________________________________________________


SUSE Security Update: Security update for tigervnc

______________________________________________________________________________

Announcement ID:   SUSE-SU-2020:0113-1
Rating:            important
References:        #1159856 #1159858 #1159860 #1160250 #1160251
Cross-References:  CVE-2019-15691 CVE-2019-15692 CVE-2019-15693 CVE-2019-15694
                   CVE-2019-15695
Affected Products:
                   SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
                   SUSE Linux Enterprise Module for Desktop Applications 15-SP1
                   SUSE Linux Enterprise Module for Basesystem 15-SP1
______________________________________________________________________________

An update that fixes 5 vulnerabilities is now available.

Description:

This update for tigervnc fixes the following issues:

  o CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack
    memory in ZRLEDecoder (bsc#1159856).
  o CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode (bsc#
    1160250).
  o CVE-2019-15693: Fixed a heap-based buffer overflow in
    TightDecoder::FilterGradient (bsc#1159858).
  o CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper
    error handling in processing MemOutStream (bsc#1160251).
  o CVE-2019-15695: Fixed a stack-based buffer overflow, which could be
    triggered from CMsgReader::readSetCursor (bsc#1159860).

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:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools
    15-SP1:
    zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-113=1
  o SUSE Linux Enterprise Module for Desktop Applications 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP1-2020-113=1
  o SUSE Linux Enterprise Module for Basesystem 15-SP1:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-113=1

Package List:

  o SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
    (noarch):
       tigervnc-x11vnc-1.9.0-19.3.1
       xorg-x11-Xvnc-java-1.9.0-19.3.1
  o SUSE Linux Enterprise Module for Desktop Applications 15-SP1 (aarch64
    ppc64le s390x x86_64):
       libXvnc-devel-1.9.0-19.3.1
       tigervnc-debuginfo-1.9.0-19.3.1
       tigervnc-debugsource-1.9.0-19.3.1
  o SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le s390x
    x86_64):
       libXvnc1-1.9.0-19.3.1
       libXvnc1-debuginfo-1.9.0-19.3.1
       tigervnc-1.9.0-19.3.1
       tigervnc-debuginfo-1.9.0-19.3.1
       tigervnc-debugsource-1.9.0-19.3.1
       xorg-x11-Xvnc-1.9.0-19.3.1
       xorg-x11-Xvnc-debuginfo-1.9.0-19.3.1
  o SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le
    x86_64):
       xorg-x11-Xvnc-module-1.9.0-19.3.1
       xorg-x11-Xvnc-module-debuginfo-1.9.0-19.3.1
  o SUSE Linux Enterprise Module for Basesystem 15-SP1 (noarch):
       xorg-x11-Xvnc-novnc-1.9.0-19.3.1


References:

  o https://www.suse.com/security/cve/CVE-2019-15691.html
  o https://www.suse.com/security/cve/CVE-2019-15692.html
  o https://www.suse.com/security/cve/CVE-2019-15693.html
  o https://www.suse.com/security/cve/CVE-2019-15694.html
  o https://www.suse.com/security/cve/CVE-2019-15695.html
  o https://bugzilla.suse.com/1159856
  o https://bugzilla.suse.com/1159858
  o https://bugzilla.suse.com/1159860
  o https://bugzilla.suse.com/1160250
  o https://bugzilla.suse.com/1160251

- --------------------------END INCLUDED TEXT--------------------

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