Security update for LibVNCServer

Announcement ID: SUSE-SU-2020:1873-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2017-18922 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-18922 ( 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 Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Linux Enterprise Workstation Extension 15 SP1
  • SUSE Linux Enterprise Workstation Extension 15 SP2
  • SUSE Manager Proxy 4.0
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.0
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.0
  • SUSE Manager Server 4.1
  • SUSE Package Hub 15 15-SP1
  • SUSE Package Hub 15 15-SP2

An update that solves one vulnerability can now be installed.

Description:

This update for LibVNCServer fixes the following issues:

  • CVE-2017-18922: Fixed an issue which could have allowed to an attacker to pre-auth overwrite a function pointer which subsequently used leading to potential remote code execution (bsc#1173477).

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-SP1-2020-1873=1
  • SUSE Package Hub 15 15-SP2
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2020-1873=1
  • SUSE Linux Enterprise Workstation Extension 15 SP1
    zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2020-1873=1
  • SUSE Linux Enterprise Workstation Extension 15 SP2
    zypper in -t patch SUSE-SLE-Product-WE-15-SP2-2020-1873=1

Package List:

  • SUSE Package Hub 15 15-SP1 (aarch64 ppc64le s390x x86_64)
    • libvncserver0-0.9.10-4.19.1
    • libvncserver0-debuginfo-0.9.10-4.19.1
    • LibVNCServer-debugsource-0.9.10-4.19.1
  • SUSE Package Hub 15 15-SP2 (aarch64 ppc64le s390x x86_64)
    • libvncserver0-0.9.10-4.19.1
    • libvncserver0-debuginfo-0.9.10-4.19.1
    • LibVNCServer-debugsource-0.9.10-4.19.1
  • SUSE Linux Enterprise Workstation Extension 15 SP1 (x86_64)
    • libvncclient0-debuginfo-0.9.10-4.19.1
    • LibVNCServer-debugsource-0.9.10-4.19.1
    • libvncclient0-0.9.10-4.19.1
  • SUSE Linux Enterprise Workstation Extension 15 SP2 (x86_64)
    • LibVNCServer-debugsource-0.9.10-4.19.1
    • libvncserver0-debuginfo-0.9.10-4.19.1
    • libvncserver0-0.9.10-4.19.1
    • libvncclient0-0.9.10-4.19.1
    • libvncclient0-debuginfo-0.9.10-4.19.1

References: