Security update for tigervnc

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:

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

Package List:

  • 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
  • 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
  • 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
  • SUSE Linux Enterprise Module for Basesystem 15 (noarch):
    • xorg-x11-Xvnc-novnc-1.8.0-13.11.1

References: