Security update for tigervnc

An update that solves 5 vulnerabilities and has one errata is now available.

Description:

This update for tigervnc fixes the following issues:

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

• SUSE OpenStack Cloud Crowbar 8:
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-8-2020-159=1
• SUSE OpenStack Cloud 8:
  zypper in -t patch SUSE-OpenStack-Cloud-8-2020-159=1
• SUSE OpenStack Cloud 7:
  zypper in -t patch SUSE-OpenStack-Cloud-7-2020-159=1
• SUSE Linux Enterprise Server for SAP 12-SP3:
  zypper in -t patch SUSE-SLE-SAP-12-SP3-2020-159=1
• SUSE Linux Enterprise Server for SAP 12-SP2:
  zypper in -t patch SUSE-SLE-SAP-12-SP2-2020-159=1
• SUSE Linux Enterprise Server 12-SP3-LTSS:
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2020-159=1
• SUSE Linux Enterprise Server 12-SP3-BCL:
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2020-159=1
• SUSE Linux Enterprise Server 12-SP2-LTSS:
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2020-159=1
• SUSE Linux Enterprise Server 12-SP2-BCL:
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2020-159=1
• SUSE Enterprise Storage 5:
  zypper in -t patch SUSE-Storage-5-2020-159=1
• HPE Helion Openstack 8:
  zypper in -t patch HPE-Helion-OpenStack-8-2020-159=1

Package List:

• SUSE OpenStack Cloud Crowbar 8 (x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE OpenStack Cloud 8 (x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE OpenStack Cloud 7 (s390x x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server for SAP 12-SP2 (ppc64le x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server 12-SP3-LTSS (aarch64 ppc64le s390x x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server 12-SP3-BCL (x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server 12-SP2-LTSS (ppc64le s390x x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• SUSE Enterprise Storage 5 (aarch64 x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1
• HPE Helion Openstack 8 (x86_64):
  • libXvnc1-1.6.0-18.28.1
  • libXvnc1-debuginfo-1.6.0-18.28.1
  • tigervnc-1.6.0-18.28.1
  • tigervnc-debuginfo-1.6.0-18.28.1
  • tigervnc-debugsource-1.6.0-18.28.1
  • xorg-x11-Xvnc-1.6.0-18.28.1
  • xorg-x11-Xvnc-debuginfo-1.6.0-18.28.1

References:

• https://www.suse.com/security/cve/CVE-2019-15691.html
• https://www.suse.com/security/cve/CVE-2019-15692.html
• https://www.suse.com/security/cve/CVE-2019-15693.html
• https://www.suse.com/security/cve/CVE-2019-15694.html
• https://www.suse.com/security/cve/CVE-2019-15695.html
• https://bugzilla.suse.com/1159856
• https://bugzilla.suse.com/1159858
• https://bugzilla.suse.com/1159860
• https://bugzilla.suse.com/1160250
• https://bugzilla.suse.com/1160251
• https://bugzilla.suse.com/1160937