Security update for LibVNCServer

Announcement ID: SUSE-SU-2019:0283-1
Rating: critical
References:
Cross-References:
CVSS scores:
  • CVE-2018-20748 ( SUSE ): 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2018-20748 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20748 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20749 ( SUSE ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20749 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20749 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20750 ( SUSE ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20750 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20750 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 15
  • SUSE Linux Enterprise High Performance Computing 15
  • SUSE Linux Enterprise Server 15
  • SUSE Linux Enterprise Server for SAP Applications 15
  • SUSE Linux Enterprise Workstation Extension 15
  • SUSE Package Hub 15

An update that solves three vulnerabilities can now be installed.

Description:

This update for LibVNCServer fixes the following issues:

Security issues fixed:

  • CVE-2018-20749: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123828)
  • CVE-2018-20750: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123832)
  • CVE-2018-20748: Fixed multiple heap out-of-bound writes in VNC client code (bsc#1123823)

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
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-2019-283=1
  • SUSE Linux Enterprise Workstation Extension 15
    zypper in -t patch SUSE-SLE-Product-WE-15-2019-283=1

Package List:

  • SUSE Package Hub 15 (aarch64 ppc64le s390x x86_64)
    • LibVNCServer-debugsource-0.9.10-4.6.1
    • libvncserver0-0.9.10-4.6.1
    • libvncserver0-debuginfo-0.9.10-4.6.1
  • SUSE Linux Enterprise Workstation Extension 15 (x86_64)
    • LibVNCServer-debugsource-0.9.10-4.6.1
    • libvncclient0-0.9.10-4.6.1
    • libvncclient0-debuginfo-0.9.10-4.6.1

References: