Security update for LibVNCServer

Announcement ID: SUSE-SU-2020:1164-2
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2019-15681 ( SUSE ): 4.8 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
  • CVE-2019-15681 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2019-15690 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2019-20788 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2019-20788 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 15 SP1
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • SUSE Manager Proxy 4.0
  • SUSE Manager Retail Branch Server 4.0
  • SUSE Manager Server 4.0
  • SUSE Package Hub 15 15-SP1

An update that solves three vulnerabilities can now be installed.

Description:

This update for LibVNCServer fixes the following issues:

  • CVE-2019-15690: Fixed a heap buffer overflow (bsc#1160471).
  • CVE-2019-15681: Fixed a memory leak which could have allowed to a remote attacker to read stack memory (bsc#1155419).
  • CVE-2019-20788: Fixed a integer overflow and heap-based buffer overflow via a large height or width value (bsc#1170441).

Patch Instructions:

To install this SUSE 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 Package Hub 15 15-SP1
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP1-2020-1164=1

Package List:

  • SUSE Package Hub 15 15-SP1 (aarch64 ppc64le s390x x86_64)
    • libvncserver0-0.9.10-4.14.1
    • libvncserver0-debuginfo-0.9.10-4.14.1
    • LibVNCServer-debugsource-0.9.10-4.14.1

References: