Security update for LibVNCServer

Announcement ID: SUSE-SU-2019:0080-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2018-15126 ( SUSE ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-15126 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-15127 ( SUSE ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-15127 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20019 ( SUSE ): 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2018-20019 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20019 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20020 ( SUSE ): 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2018-20020 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-20021 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2018-20021 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2018-20022 ( SUSE ): 5.4 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
  • CVE-2018-20022 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2018-20023 ( SUSE ): 4.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
  • CVE-2018-20023 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CVE-2018-20024 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2018-20024 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2018-6307 ( SUSE ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-6307 ( NVD ): 8.1 CVSS:3.0/AV:N/AC:H/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 nine vulnerabilities can now be installed.

Description:

This update for LibVNCServer fixes the following issues:

Security issues fixed:

  • CVE-2018-15126: Fixed use-after-free in file transfer extension (bsc#1120114)
  • CVE-2018-6307: Fixed use-after-free in file transfer extension server code (bsc#1120115)
  • CVE-2018-20020: Fixed heap out-of-bound write inside structure in VNC client code (bsc#1120116)
  • CVE-2018-15127: Fixed heap out-of-bounds write in rfbserver.c (bsc#1120117)
  • CVE-2018-20019: Fixed multiple heap out-of-bound writes in VNC client code (bsc#1120118)
  • CVE-2018-20023: Fixed information disclosure through improper initialization in VNC Repeater client code (bsc#1120119)
  • CVE-2018-20022: Fixed information disclosure through improper initialization in VNC client code (bsc#1120120)
  • CVE-2018-20024: Fixed NULL pointer dereference in VNC client code (bsc#1120121)
  • CVE-2018-20021: Fixed infinite loop in VNC client code (bsc#1120122)

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-15-2019-80=1
  • SUSE Linux Enterprise Workstation Extension 15
    zypper in -t patch SUSE-SLE-Product-WE-15-2019-80=1

Package List:

  • SUSE Package Hub 15 (aarch64 ppc64le s390x x86_64)
    • libvncserver0-debuginfo-0.9.10-4.3.1
    • LibVNCServer-debugsource-0.9.10-4.3.1
    • libvncserver0-0.9.10-4.3.1
  • SUSE Linux Enterprise Workstation Extension 15 (x86_64)
    • libvncclient0-debuginfo-0.9.10-4.3.1
    • LibVNCServer-debugsource-0.9.10-4.3.1
    • libvncclient0-0.9.10-4.3.1

References: